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 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 0x57f8b0578f0005f58e0b7d87ac4daafd3d6fadcdca642b11fc6ea91f0c27299f. 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/81bdeaee-1285-4804-8dd4-d17132a39223.json and https://artists.proofprofile.net/proofs/artist/81bdeaee-1285-4804-8dd4-d17132a39223.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 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 0x2a593e24dfa7546090c815d559ddf8a729a90af2f729524f9f4618bea65d9ef9. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/TCJPF1773206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ff714e6fe6b40b4cc136c32befb858059b74311b3d53c105f99d68243f5263f. 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/TCJPF1773216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9ea3276da36731ddc48e5725c8a640cf2a52d4b468789c21761bed558d87109. 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/TCJPI1814033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb759bed248468d2d138a0a6ccbc830531bee614ea62ff71754b302caad4b297d. 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/TCJPI1814035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5d123b4a0c90efdf303169b2178718d478455cce76a8fe5ef5863ebb1c6255e. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/TCJPI1814037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7db33cc150957c98067f2c97d6f1b5b6824ef356e89ce8eb3f1fe4777d99db7c. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T03:48:36Z), 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/TCJPI1814052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ca4e7eb2bcb418fa3835eb631585543f7c8dfc6454d32de841b4bde5afc13da. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T01:08:10Z), 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/TCJPK1902679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f7b6d53f5cf5f37f2ec21656f86c30c13b160b39abead118c325ad262b1f633. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/TCJPK1902681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27fb657280a46043baf0a6871cf240714cdfb6860e82fd39c3c9274adca17dc6. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/TCJPK1902683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0209bc884871a0b75636ba244c2c3ac18132fff590b7b08495fb559dba5f19f7. Chain 2 (Bitcoin): anchored in block 959063 (2026-07-21T21:45:32Z), 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/TCJPK1902685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43292f510892be27e053930327ff908cb34cc53cd1fef8cf103ad841a033e69d. Chain 2 (Bitcoin): anchored in block 959071 (2026-07-21T22:56:27Z), 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/TCJPK1902687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x912b4b01a156c364df3585157cb4f3f576a448b8da078d553ce5b5227c7618d6. 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/TCJPK1902689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ab812d67510b7b6796e1c83c1bf5365b006bd0cf53fc201bb9c11a2ef7fe804. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T01:47:42Z), 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/TCJPS2255874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e995e15e144663d94f033a460007dada025f56038495ffb3eadeb05ab6f7e67. 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/TCJPS2255879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f785476e90ac365878d65d08d4a9e24b4b7e31a5a46ae331351640bd4da77ce. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/TCJPS2255881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ad6366cbeb3050ebc652599686a5eda78081f67eefa31b52cc575f795c22bca. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/TCJPS2255882.
SCARLET OBSTACLE -Shriek of the Melodies-
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf5dfa098a5fe70a7eab76a06cf6f361320a8af0472f889adbe66ce320a97194. 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/TCJPS2255884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12df82402d685eebb9c5aefdbba43580677fabecfb0d32a7352cb8ce6a87adb9. 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/JP92G2302418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb64d7ea48a5772f1b58425ecf3c07505e47666d059e016c50091d3280a041e41. Chain 2 (Bitcoin): anchored in block 957676 (2026-07-12T08:20:25Z), 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/JP92G2302419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5877b353bb87780a9259cfb77760255bb42f680d72a33b24c66c5071eda836c2. Chain 2 (Bitcoin): anchored in block 958706 (2026-07-19T08:50:34Z), 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/JP92G2302420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79ec940d8bb582a807fde301e4d2203edf13ef0e6b0b4aa9da549ff9b1f5908d. 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/JP92G2302421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dc7e51f193e07443989af979b55595b8848bb64e6e481528727700fdec54cb8. 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/JP92G2302422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90130d2e0adf20b4ef1ce6b5e7bf0af5d6ac19be86e84164590cf42312f1060c. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/JP92G2302423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf46384a172edeaffed5542ca063aa30af84af60ba8b23e5562a0c0562ca12d1e. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/JP92G2302424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a52f20fd636d469cbcbfdeea488e9e125f808c809486fe2c636063698e139d4. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/JP92G2302425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd88203014d91132a9f86b3f14369b093a6d04e3d145b4a62d605b8e27145dce8. 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/JP92G2302426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb54b5d229ebec5201d3d7a18004cb0d3875041cdab68c1344b0fa14f14b12505. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/JP92G2302427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8277c92725b880f164e93d98d09326e56c16f654e0978d5c0b4f86622694e984. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/JP92G2302428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a0c309f4058a9e76d90dca3baddc28d25be40d25c1ae04e37804ffb047da750. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/JP92G2302430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d1f2a6e3f052be31bd0744745d79d3af631d36a3230df9661d8f04db1109898. 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/JP92G2302431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb586fca158f69e9783267ba6cb88c39e4e5bc8a166a2de3c74e631a5f61c9c5. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/JP92G2302432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37ce2be6193c2eabb339a0fd19ccf92388336e0bc05174935aeb6ec2c84d132f. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/JP92G2302433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ced20f39a0bd1fe48f8eedfbe2d53789121c828876a7d948abf83293e8da42e. 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/JP92G2302434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x630d05e39cbd7123e501b2dfce132b6faba30176542d4658db2c47dd7d88a27c. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/JP92G2302438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5b29522afc24ad6cc1b504634a444c2dd1859228160601f4d1bc4a9736532cc. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/JP92G2302440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf142e0a59602865e27d3d8a19b17f83f8657b7c0c7b77705ccfc9f45cc5be37e. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/JPF972402390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2fd958e1abbac969deec58213720d3ed82620240ee04c0d09fb8b4fe514108d. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/JPF972402391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x917b9c986cba54adf04e4232212dca7743a5c6d35f9a568787582a8a5aeb1386. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/JPF972402392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24b853098442b597e9ad6e6bfc7fef8d46d8bdf8a01191ff21ed8d732ab0d83b. 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/JPF972402395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x594ca3d4a15c64c949050c4e0dcf246ad303316c1b9f16d808b09ea6bba38138. 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/JPF972402396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b3dd2f41d6e4151906f6f315142531a5b683cd24690eaf86a8009021b6532d9. 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/JPF972402397.