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 0x0518645ddef74f3df82b0d8c9a1658becb1c2e12ad902ca12926afe9c81d7502. 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/2197a0eb-8508-453f-ada3-038e2feff0cd.json and https://artists.proofprofile.net/proofs/artist/2197a0eb-8508-453f-ada3-038e2feff0cd.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 0xab863ab5a96c9f82fa57f2e8cb2276801e5e7c13089742aeec23a89b64fd9e54. 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/GBKPL2086872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ffa29cadc1343f9f87381d4205c3a3c1e578b8f8da112d93db5b48c92cd2431. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:25:46Z), 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/GBKPL2086873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeecc48d86480d47b6a22d7547ca7fe0345acbb1b57edd24c75fd549496559c12. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/GBKPL2086874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x246f1120a1302f0434bc5c7c40a89329aaa25c8a982b2096798c9af2a8d345a4. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/GBKPL2086878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0232985e47596e42c7c1a50a8e195f42fbef7375ae0ddf2e57058879e8eee7f9. 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/GBKPL2086881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5413340afda53c58325f684bf0e9eeb76d668fd05c9439fe30eeaad103677a5. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:10:52Z), 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/GBKPL2086882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c95760555a420027f9b876d6db787f20bd886410473f08cba7f43342b1834cb. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:21:51Z), 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/GBKPL2086884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0894bff07c6c7c439b519189dc84881088d368805ca7eeb11e8467ee46b9fbf7. 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/GBKPL2086885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab6b663742935be5daaad2ab4b51e47b15450a277bccb2471fdd02f849732ad9. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:54:45Z), 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/GBKPL2036029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x430b2598fa366c61ac078a6e392c4fb30d30ec4723eed69e1bfc894caf642517. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZHN42327734.
Hopeless Romantic: A Mixtape by Yours Truly
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4d08283f83c4a3436628cd5e96a64f68302c2d38e10719c98cb973ebed4b852. 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/QZNWS2317687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21a5327b0ab298056a9d6b6c039c4f472a59a305a1f433baeee9186d001023c8. 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/QZNWS2317689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb134f529954e88e482b9aab4cbb777e2f37f1d5d785e2dc0cb718bce7c09785. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/QZNWS2317690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdfd2046135543a9392da71278aee393002e4d631c572e12fdffae03dabc504c. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:32:47Z), 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/QZNWS2317691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38467e3f79cf78bf4102ad84aa1e60cc20782736b599036744d66ae8d127c575. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZNWS2317692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x700e3b6f9d2427195a3fd73493ed082efeae006972c3d8fdedba1ccaa1513faa. 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/QZNWS2317694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6aa7fcc44858e0ad29b7536d5e0fdb927a31e10063dcd0d737a097addd7f116. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QT3EY2413374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00162fb7a8cd8b59cabc4e473a878e59aad96460f7f0c907e03acd7a5f27606e. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QT3FB2579409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebe46952c8426c0e3542028cdb2d59dcd0adf46fe6b0156b6acefd58e5594c67. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QT3F22570109.