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 0x367402c63a5b6224efe504cf4862f1ce18e669e10d73c2755aeee3c701fafbff. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/33d29844-d76a-4fdf-8f55-4ea271bdbaaa.json and https://artists.proofprofile.net/proofs/artist/33d29844-d76a-4fdf-8f55-4ea271bdbaaa.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 0x0787c0b7afa6a7ea488b07aa8fe3e0efe05408435fde068279cc5326ad3cf0a0. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FRQ031211901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51d35725f5f6f69f861bfa0be3a714e6f8f3a8f53033f2ceed5bfa35316bef58. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FRQ031211902.
Xoxo - Antoine Lacoste, Joel Hatstat and Shannon Wright Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a617ffcb6c5ebbb6be2f3eccdf113f9b8d2573eb8e2935626e2c4697330c951. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FRQ031211903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2714c049e7216858cfc6fd11bda5f8a237711d8325a6c24c347e392d6fe6654. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FRQ031211904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb203c483e737610e49f9d8bff018ddbe938fa1eeb9fba488ff50ff45345a122a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FRQ031211905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0c1a97dd5127db698d54171b82cf72873b11f0b7349bf007e6b10f39cfd8469. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FRQ031211909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x034c674cc20984e63518243aa745af16281cbb14d5639ad79af841a1935d0cc4. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FRQ031211911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c82ff759c1a7ecf0d1bf715ec48d3e60dcbc7cf71a63b28c4d5c76ef82483a0. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FRQ031211914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4ba871cc80597c03642bb9377771d8bdf95735c91d61c02edd4aab118290d2b. 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/FRQ031211919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c3c9bf28cf9c4836fea7b9a6c9cc3ff15513d8ca9afdd3f872d8e3506147056. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FRP621900220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6631f52c662a011f07a4b08e759485e45c0e7cdcbe257545d4bf506c54650db1. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/FRP621900230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x086823af6b432a5892cc9f73a7613e67c02568ff2ae2861484bc5d370fc25388. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FRP622400050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8d595614475f4719a6db46f59ef4621871872b60183656e1f551e486bf59669. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FRP622400100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe90953860dc67630ebc684cbe29597e639ba345bc37c96ac02914001ba1d0b88. 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/FRP622400000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc32fdbf6133ac3aeacd35ce15c5b10d42ff03377b18823eaed994d31af2919e1. Chain 2 (Bitcoin): anchored in block 957246 (2026-07-09T01:49:50Z), 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/FRP622400060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56dffa99364c8264c464bbeffead6152336dd08daf419f739c025167fe161961. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FRP622000710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c0d8fc99d856f5cf2820187a455dd8c77665f35b366d052ec879a04ab66e341. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/FRP622000790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce7940367e745e374aba47ab5f0ba39e98d0628c63aac290f7da845d7a41b39e. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/FRP622000720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7b3bc3a3daf548d63a8a2a181ff50a74901cec47df3c612e8165452d2f2be18. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/FRP621501010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0543167abe76d2a61ebef8f256d7adfa5e1b175d503f391459ec3245150e91f3. 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/FRP621501050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96b558ee21572b3fe2d55a03796cac1aaa6c5bf6987a1227b397bcb3ddeb369e. 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/FRP621501060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d3c8bd72cf36f51a25d9e491aa52309eedc02027ac121ea055f00f8f6fb0f21. 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/FRZ041200634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eb488ff384ecd45a0a25b6480bf78b0fafa844b562a3a272b41890395a551c3. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FRZ041200635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68bb276457df574eab1018aedf4d75aad5a27a80abe4b9e86ca160ab684f0c16. 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/FRZ041200637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b2262677506c01887e9af8f2297b98ccaa8dd0c53fbaeca2b7eabe543e81e7b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FRZ041200640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ad1fc6edfe79ab98e7d572637ff37dde3a623531a337b250d8d5355f7181ca2. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/FRZ041200644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c9a77abc9604d00b16c67b5386924b67207ff060952320a47b6ef894e75c074. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/FRZ041200647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x086823af6b432a5892cc9f73a7613e67c02568ff2ae2861484bc5d370fc25388. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FRP622400050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56dffa99364c8264c464bbeffead6152336dd08daf419f739c025167fe161961. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FRP622000710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf65669c4fd87d964ba2322ee54c3453f2f612c596f72e532438b6a5053756a77. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/FRT091200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf726ce87595323f6b9cb7783f65713e646112f936d7803691c4b4d8969d30b1. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FRT091200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d54f67574225bc7c1bf71c5a1e061b115047f345f370c28f09ae3315b4af84b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FRT091200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf75e31daf505aac12630c8d543dc7f2c4a60e91874312a2dd0ec858c093ef6d2. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FRT091200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c20fbda5234e0bdc46bdd5bb87cf734ca9c3f421ba57e7df890d01882457526. 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/FRT091200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1c40736e4d08479b6b7c6ca92be898b7f9d6da690c9969aa69b9cf45c9feb07. 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/FRT091200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46cd1d3d08aec073492c1c1c67a090f576376b9d416a3a95fc8c502f812f3752. 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/FRT091200012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1cf6f76135ce0b542d8aa33adafb39bd7401d93169b4b9597426db7f6971b3f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR97Q1127301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x733ae4a8d1cdf0453bbaa7eda4f99659f59ed6f84d5860acdbe2ac48807bdea7. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/FR97Q1127307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79916df614cf66b193ba847df1b33765ac585fb687659ee83e4688931c485485. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FR97Q1127310.
Variations sur Artémis (Bande Originale du film "Artémis, Coeur d'Artichaut")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf805521074d74a4d9651740c05c6fda9a2a1aa1890e5a9b8fc3b91001fd468e7. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR6V82194280.