1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xdb47b5b18543244e90ff58125a9b0942264af68ca22a58c2309a4bd6e67848ad. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e97944ce-353c-41c5-8f94-61daf985bd4e.json and https://artists.proofprofile.net/proofs/artist/e97944ce-353c-41c5-8f94-61daf985bd4e.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 → block OTSBitcoinBlock must exist at that height 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 0x4cee6102c8880af799851a753b19453a941b1c29352f146af18b45e573f57d34. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBUDY0900202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d468f8652179b66b46990ea66bb42fb2191f62411047dea1c3be0e9d1da4c2e. 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/GBUDY0900203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e43c5ccf1b6c58a49d774cdc47f152035e58d59ef802d4d7aae59593fabe46a. 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/GBUDY0900204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c580869aaf16193ab3b7c40e70708e755dd76bc0e34c53358c241d3695ef9c2. 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/GBUDY0900205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf0642c0fb8adf98266213834a3dbeacadf4ee1ca3ed6194b0b54f614f64d894. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBUDY0900206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cd04f1b9ac81ed61990d34980ea27505a6335fe9b388c4a7bcfb2bfe78bfe30. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBUDY0900207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dabcf71c27612304a446f1704bb4cb89282192ad945c06b4802988200c1e02c. 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/GBUDY0900208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1652d8d82d1ea86d1bf73246cafc51782a7a9f83cb49f279112d48d3944f5e0. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/GBUDY0900209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8885b77182f9c0c3493edad68ed74e84c697a7e2e10712dbd5c89522f9952f9. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBUDY0900210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa334d86a382b0cf477f849a15c1dd20565cf5cccfaa6c73a4f808d654ecd772. 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/GBUDY0900213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41cd2be73cd412808ed6f55658bb612e5c0d0272df91e6de78bd537f1c109b7d. 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/GBUDY0900214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa87e57878ff37876ab1f33449b2c281536fbc5592b5783fa2311627330e469e7. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBUDY0900215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5b3e5c06c66396ee3c78a8266f4ed2585f0c0f46b9873ba558ef9e184e40d62. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBUDY0900216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6773733acacbea6710175bfaf0e60c3a27e9edcb50154db5393f5441ee8bc55. 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/GBUDY0900225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28224e2fdae2593612c3890d70e4740d8ee2d07fa977ca1d480166495da6346c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBUDY0900226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd226de9a400630d5f5a527c218ba88d096c4ebfb9945112b1687dbe16c368b3. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/GBUDY0900227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3251253af78958d79d2837b688e91bf48bf930f36f39875c1a62078e4ef95f7. 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/GBUDY0900228.