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 0x08918f2ef37e66f4cfe2af7d284d1eebca06597b678bc3106b51a28885c9614e. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/43ec6692-e4f2-4f48-9bcb-a9104031891d.json and https://artists.proofprofile.net/proofs/artist/43ec6692-e4f2-4f48-9bcb-a9104031891d.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 0xc2b5486af6f1edeef26b8ee766a5f091958653624cd49434772e9be34efc76f8. 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/GBCLQ1900049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79c08286aa6366af88c016eef9516505dfea8e68243c803e573df9f586bf0193. 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/GBCLQ1900052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x066b771bc843d10230634e138bb1575428d7184f5a0d75e3bca7deb8dce95296. Chain 2 (Bitcoin): anchored in block 957834 (2026-07-13T09:42:16Z), 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/GBCLQ1900054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f1828a2ee9c6a539a9fb513ea5ed2af8ad9a3ca51610ace22a1fd065bca762e. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:57:00Z), 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/GBCLQ1900056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c7e6004b6b496a2dec3aaa78cf7c61e66d4c7957469e5aee3218339f6b45744. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:25:50Z), 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/GBCLQ2000083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x093399cd2db804f411af542efda7f495c35f88b476f8d3d4a5123ecb30a6aa59. Chain 2 (Bitcoin): anchored in block 958656 (2026-07-19T04:04:08Z), 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/GBCLQ2100210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba17c61847253397419fb34e60de39a1b13654e692c57018a1bbcd8acfee405e. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/GBCLQ2100212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdefff7032cc98cffa74971ff3c91cc1c0dda6a57fd07bcd2dc58328c5883263. 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/GBCLQ2100213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ab93c958a07ac975dcf659665ace57a18b56b9f5c8554f07d478734cc28281f. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/GBCLQ2100215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dc9468e586c91dd791b15b69a8740eff71e4a6d8beacad42ac102fd51622731. 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/GBCLQ2100216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa95134ca73dab428fe4c12be98b34d0ab4a24ceabf74ef00095d289a13347cba. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:52:18Z), 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/GBCLQ2100217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe55f274cf7d20bcad9e88f6f86121dab03d95a4351f8166056de05a6f63109a. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T15:56:12Z), 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/GBCLQ2100218.
Şinanay / French Disko (Lagniappe Session)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc43a5c2e392027b654bb642466d067b5f21210586effb4356413df74ba51f698. 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/GBCLQ2200669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7b0a90b3886f1837e037f6b38a62e4f1ed3dc8e1153dc2310ecd719648f9d85. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/GBCLQ2200668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a85a5c09406d7ce149b2b56327fc5aab443e13d1917e246c91709e5722cf80d. 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/GBCFB2400777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b3208e5b6de79f6767b1b2a51393b865816c46ef1c4967b19e7657e22af5354. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/GBCFB2400782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a85a5c09406d7ce149b2b56327fc5aab443e13d1917e246c91709e5722cf80d. 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/GBCFB2400777.
Certain Things You Can't Explain (I'll Just Let Myself Go)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee3e74ac2ac68ad62a00ebdeee87caf04da4d116608604843b96c9dc2595dd60. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/GBCFB2400780.
Mechanics of Love (Stripped) / Faust (Stripped)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43312d5a93ba5bc8296f388720fd6313d64ae9fad123cdf1b9ad2703f9d6cab2. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/GBCFB2500707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d4359b5c5c3a1bc796249e705c5f5e5d7b5993356bbdffceb273feb7ef2d924. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-16T00:17:21Z), 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/GBCFB2400784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a85a5c09406d7ce149b2b56327fc5aab443e13d1917e246c91709e5722cf80d. 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/GBCFB2400777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ff7d5a9441b8bf947fa3c470de35824a953d6df9c0abce065e1dc9a4197687a. 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/FR4EO2400066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x537b4e95b508b00960650d16b20bce792bd863c1a520ed9d5b45746166e0e647. 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/GBEQT2100073.