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 0x2e633ac7f20ca11d50841be064477f468c9967be385f4a6bc176dc6198e5f363. 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/cfa768ab-1129-42b8-a97e-670451288fd8.json and https://artists.proofprofile.net/proofs/artist/cfa768ab-1129-42b8-a97e-670451288fd8.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 0x3924322d3e639b9cc3965de003bb56fc8efa578e53f6c933a6cbf8fff9b07507. 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/GBJXP1730807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd85bb256f16ef784a48f694d15c6435f201242e54f1b80b30d95aab00f39ab5a. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/GBJXP1730809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5283d0005b5ca40360b1a68c90b97667b4433bf3ddca621a0fb8a6286827d3f5. 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/GBJXP1730810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e9b0390e3e3106e8a8597daa652b81fa908f7ab95570b4360fd1393418e2927. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/GBJXP1730801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd567431b8408dcf9939ac1cd8f84dc2fed8acf2da42edde348b2dab6846ecf3c. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/GBJXP1730804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x842d66d3c8112adc305c82314e456a344f3078a256f7559ff5420c7225f6adc1. 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/GBJXP1730805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ef6d418e6b4a3dce855eaf86a6afcb843d31ec060e05b6b6d4a0a13f9cb94b3. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/GBJXP1730806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa3d6e38859d627dedd6fc04cb21ccafbb7a0079179d42158675475f7d6e5773. 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/GBJXP1730808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98a28e09133fc97c58ded9657dd6ae6d75116a65f71102310530228cc8fbc8df. Chain 2 (Bitcoin): anchored in block 958668 (2026-07-19T05:16:11Z), 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/GBJXP1833402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03110a689b80905bf73bb268abf57d43a9db91ddd6d9b0c56c6fde4ad9e7d405. Chain 2 (Bitcoin): anchored in block 958670 (2026-07-19T05:26:23Z), 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/GBJXP1833403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11f8c359ab4afda0152b58d8254803a2582cf2ece63dbcd3e3fa04f5a15b8be5. 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/GBJXP2036002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06c0c1eb0ffc34bc7a57775f36de48cf3210f359bb8133171ff6087697196892. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T05:40:24Z), 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/GBJXP2036003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x587ccd29e95fc2fd6a4116d3b02ec8b842b0dae5b2b8f9f39c87a0d2136be254. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T13:22:35Z), 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/GBJXP2036009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84dca344c335c8ff1cf588caa14858f2249d6f7e0600f383f97ac4236b14c0c6. 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/GBJXP2036006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cf52e670efdb8e6746dc30b1fca1f34f640a5957997010247cd341fbdc7c3d1. 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/GBJXP2036007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24f84b176d94a8219c763af6081daabb7d25b7515d5dc6e7383e7bad20dbc209. 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/GBJXP2036008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f34000d7ba526ffe745b46fe507f6d44bb1b8c0d2fd38c38c022306b8433949. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/GBJXP2036010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54b2e19c499d57736206711a3993f16a4c962468b54394cf138cb74f64f5d287. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/GBJXP2348605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb3698abfe569a17051f3c54a3d0c9efd0a1284c1ce76417188d085b9bcd236b. 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/GBJXP2348606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27a132936e10c818848b0182e7cb2520bfcfe1ca84481bcb2f86cc3915960216. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:37:25Z), 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/GBJXP2348608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x793553ed8ac544b87c1434a54b86950edeb8c2f2671cdf3436c615025634d48b. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-02T22:22:35Z), 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/GBJXP2348609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f8c24c7e4a782a4666c034ec5eda004f18e76368fb09c6b1301a09ac353aeb9. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/GBJXP2348601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x759701ecf36ffdbdc250c84d7915f1c060c18f09a6a65eb7616f984984a51321. Chain 2 (Bitcoin): anchored in block 958106 (2026-07-15T05:35:13Z), 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/GBJXP2348602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2ef0c5083ec08793aea2ee73b65bdf8be62f7a08ab2d9c4f521460a2465e391. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/GBJXP2348604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf79c372a219c6f61bbfb0fd7d4eccdd0ab188757f25bdfdb07e5ef48519b02ed. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T23:06:05Z), 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/GBJXP2348613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ed38e8e5e1b83d77e014f040d669554953da93f081fcf35e51948b2afc35b3a. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:57:56Z), 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/GBJXP2556301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ed38e8e5e1b83d77e014f040d669554953da93f081fcf35e51948b2afc35b3a. Chain 2 (Bitcoin): anchored in block 957573 (2026-07-11T13:43:13Z), 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/GBJXP2556301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8801aa4d52b90497071981c5bdd8597f94ee751d03703e83f11a6ce8fda4d6b6. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/GBJXP2558209.
Oh ! Pourquoi te cacher ? - The Saxophones Rearrangement
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22f06fa739b402c50561417725dbfb7e8759bb6c83fd709c21166226800373ae. 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/FR2T02000032.