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 0x216a05d9ed168a438daad4c947cad854e5f96844e37e641cfdd01272cd08a057. 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/00ec7881-fc06-4634-94c9-902c102d7829.json and https://artists.proofprofile.net/proofs/artist/00ec7881-fc06-4634-94c9-902c102d7829.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 0xb7703bbc4f91e4eeb7cad1a9166e29b21844aa52af553ec76975bfd647eb7116. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/US58L1666304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x666ba75638b66d1533fc71cdd53a3a62930aff1b3f572bcdda6a020567c77dbc. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/US58L1666306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3055aa02a8a19337666db004af2a076396f11273e4660e152905c0f9f915837. 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/US58L1666307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7530297001853e1f56eda2239180c5e3f80c038fc841fdf8bcb11b1f6d5d9759. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/US58L1666308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dd5f8917cefcfff371daf4c54570d94b322d96138ff3d024c1a0706f9b5d762. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/US58L2175204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x960e610eabb842e221f48abb74f871d091c2c4edc17e4cefeced3b8af1c6142d. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:14:04Z), 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/US58L2175205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d5af24b9fd334c035022df8bd35a6f23d17b6f96c9871983f21c1e749b7f4ed. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/US58L2175206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf135a874e109803146f8fd5b666840f070d943629d44d35f02d9596837bbe36. 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/US58L2175207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4086b376f7a5f1b29a941921c584a285781ff327d82be43b31ef02612c5094c. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:13:07Z), 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/US58L2175208.
Another Story From the Center of the Earth
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0af2bc264bd2417a8759c9afa47ae2ebe2768f8b59d92bd3139b1ae642ba2ec. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/US58L2175209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc01ee66e29d04560e429982cdc643cefd8071dbc1a2ec4cf11e39bb6a9a93890. 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/US58L2175210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d9c3798b1ee7b047f5bb1794b431d8d7fdcba88100f22c5481acafbfffe368d. 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/US58L2384803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf18fe9bd6de7d6137576db520535397719dc22a953f9f80502ceaef2131ace49. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/US58L2384807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d95f0470919e5f4d4652b048103154d17fbf7148e7b6a260e2b93f20ab00f80. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/US58L2384808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbcb299e1f0c9bc035aca4082dd8a1bd14a365b0a4d4d27ab8e0af9b4da8a1ec. 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/US58L2391401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e0c70d56d428af0aa997eeddf76a039667b47c68ac34bc20f57a93378b283cc. 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/US58L2391402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x903da63130ddb69f1848b1b7a22c8a4bbd03d9c3b9f644c521318014b61cbccc. 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/US58L2080401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x966f23e3a791cfd1d0ad72175f4299bc979ede14c42e88c0665d6efc74d097f5. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:02:19Z), 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/US58L2080402.
Night Rider's Lament (feat. Cory Hanson)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a86289aef950206791577cbc4af4c17683e6fe6f2d0f1f01270be7ef07e242c. 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/US58L2080314.