H16 or H-16 may refer to: Transport Curtiss H-16, a 1914 American Curtiss Model H flying boat variant H16 engine, a type of H engine like the Fairey H-16 HMS Daring (H16), a 1932 British Royal N
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82c06d6f258ecf8988c03ae3f5f1e35764a81da9c52a35a91bfca4bdaadcb416. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/02456e21-e597-4eaf-a719-9de1a0e48236.json and https://artists.proofprofile.net/proofs/artist/02456e21-e597-4eaf-a719-9de1a0e48236.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x014427e4df42d614e7aa46c3d1607503d8f7f683ee5eea8d5526a5689a144b80. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZN882123214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66d5aadbc7e4284d256f3a1b7f81beae2d7ebb1b255e15de87c80c615f61047d. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZN882123215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08f03a7f08153ff1a713b238e46852107f8df91f805e4c18ae9ce89ac9eac248. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA230600192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x497f8ddedbc231a32d061b62b76bb68c41289ad775ccfa3659201d8c3f072ac8. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA230600197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x535e2af27a0cc847ba04f57bdd84b312f507e49142fada1da8d4ea283cbc8198. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA230600198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2cc18846a5ec6476af6b13e60996245c587c263212db59b629e8768a76f3bca. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA230600200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ba9f8b369057bafb115e1ae194b86cf16793642cd8df09e128083dce8a6aaa8. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA230600201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbca31ea5ab0aed2d3f20038b87cc6f001faf7c9516bf22f434c30e0eabc558b7. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA230600203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40d9d12d85f80cf1353dd4dafe0bb01e4eb643626607e7cdd4443c13121e5e7e. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA230800250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8700d87e41298f63aa8f3dcd3740a9159b3ba77660c13c01811bdc9864e8e1a5. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA230800251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6150601997782fd2a421f0d5eaa303c5c70bef53fed72bfcc4c0bc29822c055. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA230800259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab17670cde9b0729aa9cf586f58d6317729326f987ea8d77d7d611c028857364. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA230800260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ff08723ff7fecda5917abf6d269518b2c0413b4dd8a19ebb15c5aec1f752bd9. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA230800261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaab4bb111c4d91f84afe8432eab0e86c123b4423a8d3e2d2751ed2e1039b9496. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SKE741300104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x240c74b5f3f0907c66e5af5fa4ee70cd57465747bbf237ff7c6f4da2715273b4. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SKE741300102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6a39acfbb4cb84a9e34c381fee35f274d75b49324cd4c4e522a8cbb3fab8d16. Chain 2 (Bitcoin): anchored in block 958572 (2026-07-18T15:47:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SKE741300107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63b1619f35f87e63e6082d7edef36023ea28199def6dc70ec00968f63ce59f74. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SKE741300109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a8b0e3f6ced26dba8262d0f1b6c7fc1817d4030a712b09f4cd170828755ead5. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SKE741300110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b4767223a53c5aeace1ddd283f4e9a4a54a43387caedc67c109e22073873a9d. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SKE741300111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1828db697f556195621d5300a2d24338ba985f3d96858179f761008d07d6f424. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SKE741300113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98336f1953e14e3e4bcd20b5381f681961745b127c3e2a4d978358c8d92db848. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SKE741300114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfb1245b238d5c5df1d74892b92c6848a2d4ea5c3e013296de3c111c90bfb5a6. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SKE741300115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41d4e6e16ed9eab77b6970e26d72a803a84c3ccc9eeef69b8f53f137636cc1a2. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SKE741600204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x838c132ba54ad62b320873f86c6bde25f287009e4f569024c2780808bfc31885. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SKE741600209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa86d940c4db3bfebaf3c0c2987235778617de052a97aa20594def9b3f1b96181. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:22:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SKE741600210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce5172f1d4a8e49aa5fcecb24a90b1e157dc8d84c6bbb2d1e237410cb85b8c47. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SKE741600211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea8b44e995ee0a323713c737b356b7baf3e85d190266d7aeda486cfafd9d240e. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SKE741600212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6882a0688751826d08888b0a72d5efc2eb9af0af139ae5d907c8a9b9d5bf2d82. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SKE741600213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ba4cf370512e95e4578476dc4e19fb1d22ffd6b82128014e95dd5dd1836abdb. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SKE741600214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92d4b4fd160e12556fe0ca5308834008cef8917ededc2ef784fcf1c1fa5cc20f. Chain 2 (Bitcoin): anchored in block 958785 (2026-07-20T00:28:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SKE741600215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3532a2e004990f2f2508a7d743dd24645eb5126a79c953ea03114ce5648cc92e. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:58:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SKE741600216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb676dfaa9abae772554eaeea203ec1dc112eb2bab458426c7e4278d10ce00dc. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SKE741600217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72537ae1ed48dc318e65f17d131a5bdae08f897a26551a0c4b2f87c3fe0e0372. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SKE742100104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c558cebeb779d98bd749356fad2c07280dd03889800c393e92084213703c0f9. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SKE742100101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc2ee89ebfd19c9d7dfb0dd084b5c5bdf522643b0f999d708d8aae7458cf3d15. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SKE742100102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cc3cd619536e3e825b6fb6de330196eb9df13d096f111c24210e90cf2caecde. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SKE742100108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf90609142cdd41dd151a58d5da638245e89cf9efe5be23206a7f78ac9b3e3d7. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SKE742100109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf55d5ffda61a6d20ea10737e58ddf61e799f1e2c599a7597ee784b6169407ed1. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SKE742100110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e4024a016d9d04545ca183711d1665aa36ed98b24aee228ab898ccb55bb4fee. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SKE742100112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52cf32d34e56f8b4fad124f472ae503cdf82fdccf72c1814f7c337e3466c2556. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SKE742100113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x865afda2f6cfce85c15877a018b92213d0932be2253977307c5c5f1e8a318a57. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZBX82400035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa31845de9b93181c5694f34ab8dcaa520a4905ee84bfbafd7e0b097c19815fff. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCACG1575222.
Je to Jen Tvůj Boj (Remix) [feat. H16 & Tafrob]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0376d8cc26079e6b4fb384427f796bad7c3ad6d702f772752234a2394c099230. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCACG1575241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8182bd0c8fc27ef9732975a63601c09639550aa61933d98ff6b60c4ee22bea30. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX201840075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x106117a26fd989b2a92a7cbbff925fe4225261a120ef70a0f178f14c30e9f996. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SKE741300303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaba4d03e520442b89158eaba4ab39bd3b613e061e5a0a15a4d559a67f4891cc. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SKE741300304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fa14a08b0808d576bd556855b0bd8e72cc282d6e55fe993298e64e51266b3f2. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SKE741300305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d4fda8c9470d349ccc1312460db292c9d33ba07f67b78a8e669f430c45ccf9c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SKE741300307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93f6ca21604ae6bf2f0f88263fbfd2ce8a538fa6dd42639ee861946e429247a6. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SKE741300309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0717b22400f17342f76a6622425701cdf4dfd55550374f64001e3c4526496475. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SKE741300310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd18c806ffbd387566b358d443e126ab6d8db6a03bdc7c009071820179463e5d5. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SKE741300311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a206c3c43f1a40aec963037bb49c52619ddc78c1a752416f694280658fe85e2. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZBX82400050.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9687e0500839d3f784d1e4e78b520cb7af20f3f83429b2f42e5c5012849db6ef. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SKE741300301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x148f4423abe28e50cfe5596784d2908d0fbc2f15a57747feff2d6bb5a3867af9. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SKE741300302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7f7737734fad467f2d8082db24f7c0004f7e43b69279e18317fa451bcbe06cd. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SKE741300306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13f8baa084f3f090b0feb6aab812a6ae442771e2474b7199239b3731500d6bbc. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SKE741300308.