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 0x07900566dc2e272067ec11bb827b1aeb6c1c378bef3ee78a97be93e6d67b7b37. 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/6b3dd0cc-65a5-4412-b501-491c3eba093c.json and https://artists.proofprofile.net/proofs/artist/6b3dd0cc-65a5-4412-b501-491c3eba093c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Touched By An Angel (International Version)
Sezairi Sezali / Broken (International Version)
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 0xabaa14774619e65bfc90206fb2ee3e460cfb0e79fce89377810c37d11ff5b400. 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/SGA041000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8801c6e3f399b1d0741a850d2a63edff0e5acb5ced4e25b5b608d98e3a5094dd. Chain 2 (Bitcoin): anchored in block 958819 (2026-07-20T04:08:24Z), 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/SGA041000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cc64a231714e14848d4d9a0b3e8cdfcfdadfd6fc00ebe42b2d0ce5a1f724b15. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/SGA040900001.
Sing Me To Sleep (Resung) [ft. TheOvertunes]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1058a6d508cb647ff41a4a082ac5c0c50d731b4e06a0d7e082dd6a985e66274a. 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/SGSM15100033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35a680fa663a24d11807dfb68f2d42726911f1c3050f16e5595edabdd6cc3ba6. 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/SGSM15100035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f16a9eb21d09d2744ba529d532d8f8ae698851a3b6c2c980ab14a7556575c14. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/SGSM15100047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb379cf15bc0ade7bdf1af9c2cc525271e8567518e03a31cffde704365b562fbe. 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/SMSG15100054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62d136869331a9d51b897c4361e5988a06782fb71d75d604c6a79578672e048c. Chain 2 (Bitcoin): anchored in block 956777 (2026-07-05T11:01:08Z), 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/SGSM15100055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb379cf15bc0ade7bdf1af9c2cc525271e8567518e03a31cffde704365b562fbe. 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/SMSG15100054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec84117b33d0e79495aa7b8ee724e0c1d8de6da8079284b37a0490fee4b3e768. 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/SGA022100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec84117b33d0e79495aa7b8ee724e0c1d8de6da8079284b37a0490fee4b3e768. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/SGA022100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92ecd75fd8cfbba8b1047abeace31246228810490605d52a2473dda3a96f507e. 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/SGA022300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76507f2e0ed224d86bf519255d911e5304209b70c86117b702d3be3ec88cf187. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/SGA022300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c2e2093bdd2cd2043741529ba81470441561640329e07ef4a1155408366cd7f. 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/SGA022300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40e766b6227cfd5e588b286575784655acbd0167b39e4debfbde58eb62260259. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/SGA022300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6f87072fdf14a1adf678fa2ef954d5f148478cda45e8b7fe9c1ce590a688ddf. 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/SGA022300017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5874c51f341e11c83f05001af92a2bd762ba94454a7c0da1ffb60fa597734701. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/SGA022300018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa08ab509cc510df2e062dc8813b93b5cf8e0fac4abddca2efdb7bec2caec8583. 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/TWA472005001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0a8d2f54707c2fd3ac35ed296aee0aca47874112410aded39d44a0864d6c20c. 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/FRX282131770.