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 0x18366c2d61f7178919dbd1393b8c2545f607cb31678a3831a8ebb47322a17972. 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/598a18cc-aa73-4305-82d4-88ef420ef115.json and https://artists.proofprofile.net/proofs/artist/598a18cc-aa73-4305-82d4-88ef420ef115.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 0x1e0a112bf6184c57ecfa0c32b828466b3f4b120a07478070fe5d6125cf95bb88. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:01:13Z), 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/SE5XG2377380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3da084a536cb244b8d845ad0e54700f3625199af8c8823cc4f3ab5169ccf60c. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/SE5XG2377381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee47cfe266ae7a69e4696bc841caede6f56ed40ce903f36801b5f84b2add2da6. 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/SE5XG2377382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a9f8ae1b63b893b6720a595c56d16f9d0ded692e2614ae04066eaefd54ee417. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T02:03:37Z), 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/SE5XG2314831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60c60f33c7047914c4ef8d76801cb3728d8b5ba141dfe8bfc36b033d4fd6d6fe. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:03:36Z), 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/SE5XG2314832.
Hasta La Miel Amarga (A Ver Con Que Me Pagas)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98f9c42176d1eca44b318464b6f944b7fe70bcadd76f4a06cd23ea4a49469329. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/SE5XG2314836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x513f31c21d1f64b29a6770ca7ce10101038ff8114ce7a2cf603afb15cb93cb0c. 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/SE5XG2305305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd867250bb66da885bfdc8665ccf9c8ebbbc0ee0ed02a7f317970de5d69ec6a37. 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/SE5XG2305306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6a03df1f84e38fddbf157859eb695c03e5506d9d1c4b799d7888903c1d5e563. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/SE5XG2311403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31d0472963f61ffef4aa7321b67019a87bc9301e907dc15bdafc8577b99af14f. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/SE5XG2311404.
El Mojado Acarrillado - El Mojado Acaudalado
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8453d87630eb3fc5a6184bea261d15a01c64be3330e004106aef3d44887469cc. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/SE5XG2311405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a5511790be906ed61e6f44d67ce50c12e78df53b1a18400ae50aa68cdb7e09f. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/SE5XG2311406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c15653bce9ed346089804f3b787d99e5950487c5223d688ae5415a5776b51af. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T03:52:09Z), 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/SE5XG2311407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dbe889007b331ebe204884c56e76b25664f83793c62cf9931a0c48217b41afc. 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/SE5XG2311409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadb2b7d2b4b719616d58e090859ea630610214bb2d960081568787b6bc1b44a4. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/SE5XG2303801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6358258cd3e41715cf1aadf6440d1f7e465f7d599503fca0bc1006564a9c8e2. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/SE5XG2303803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89bd94f8164b26f76922380e0c56265f113f12f85400a08b82bc7dd859901f1b. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/SE5XG2402469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6120afaca5169a623ddeb36d05b8e82952085c7d3daae113ea503c1c8ffc4340. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/SE5XG2224109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6679405175a4b8d128ea4db71e146d58c94ac8c772851a66a250babd01ece270. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/SE5XG2224111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f1a1669c2e01868cd3dbd839e4249021dd4acd8538bc187d384735457b9de78. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/SE5XG2224112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x325de05d984b48a618f3402cef3f8fac26010be6c2ab4a8583ef5a9191cd1279. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/SE5XG2224114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77dbacee10e789298b9d4f683c5682837fe181c15fc3e6188b929a15e243e0c2. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:31:40Z), 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/SE5XG2224101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd643ae39a2d70268cd844d72d0daeaa777c96071187849a9a74a0c1e0a0d1ecb. 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/SE5XG2224104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd973b157d167f2be74ac36df2b352d159cee67d76ecae931ddffb6742236bc18. 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/SE5XG2224106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb88222638a0e9f156300b3ea94b404358750db05d16168e4f90422c9533f3308. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T00:49:13Z), 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/USUM72404479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf29c2310c150a9209a657e611d51249d6781de625f7a4d1a8b6fc9c4e6be5762. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:17:19Z), 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/USUM72404480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecabea3544e19fcff6c8389692236c20ea12299a6b7079959552a09a6cda9eb8. 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/USUM72404482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde099fbb6e478f80a5be7bb8ba39ac90c6a2b1be88911845017aa9d5bcd1b73c. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USUM72404485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x309b2262a6d517713844bcaf8eedc49cf7127b6e836141335de6204291fd14f8. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:58:03Z), 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/USUM72404495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2147909bacf622c74e588c8709eafc3b9acbe0349be93104b31eaeb0cc890d87. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USUM72404497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb620bce3ffbfbb3dcfb1960bd65c5ee51fa968bdee73e3cc7670dc794af73271. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/MX2832252362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb228048aa1938cc8f0493ede0331fcdeb6be40f9d570c2ceaf5a9215aebb4a0. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/MX2832252363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8c854ea003016748cb7f0d97bd59b4a847fe52150d32117d6661e86f79f9094. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:05:47Z), 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/MX2832252365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ab8e9a6eb3e842a2f657d9f3d37b0a35a2887b0389aeea95a5c041b3c979ff7. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/MX2832252366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f89286003c1bdfe472803d5f9984a91043591ce9428b81699d986c04a538736. 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/MX2832252367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85cba52f528a14b32a624dd2ffd144346f0c6db944bb1a2bdb66d409e1a48cb8. 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/MX2832252369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e1ab37716fd507504b47e32578af626da039ae21877ad8787f9f45214a32452. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/MX2832252370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeed4c7d840d3c1c977bd980f22fb91be31c574af94bd79ecc5156f40da66175. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/MX2832252371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc55740e990244145560e2b7152d48dd2f672b9bf9204ec2c61bd74fd1bb1f60. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/MX2832252374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15d02ef0833d90f4bc3ef65d21dbd97a2911361e157a4c4e5a524029e7926822. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/MX2832252375.