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 0x739ff46573a37952699d0fba770ed0e17f3dd3128422973e32409245fafe5134. 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/f225f143-7926-4f27-8bbc-a775d646e46e.json and https://artists.proofprofile.net/proofs/artist/f225f143-7926-4f27-8bbc-a775d646e46e.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 0x3b81328f51efa38394d8bc7b42b20f11ad0134e2abc572cfa8f9128149cb487e. Chain 2 (Bitcoin): anchored in block 957648 (2026-07-12T03:52:24Z), 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/CAZ700803225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a37c788ca5a9868c654e31124e14349d9d3e19ef3ef2c6a942a3899d9a07df8. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/CAZ700803228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7885d95c6ba59a83f68785083d8b3f64f3b62e6a95eae4c07ecb3bb46c996a2. 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/CAZ700803230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x955919ae49c03880a92b7c13bf433d3f74f00404ddc5edd0843251ed9c1412ed. 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/CAZ700803232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x430b8cd75cb42e6642384de3025f86276f54463493d7fbe6339792a246799d25. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/CAZ700803247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x944b3b08ea7762076c765cb15cf9d6a9610884b7a794d04327d513b424d79b40. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:24:34Z), 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/CAZ700803249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc110928dcef0637b2fdc92c6b6e76aae2e97a0ee1807e7e92be20c122930aa63. Chain 2 (Bitcoin): anchored in block 957642 (2026-07-12T02:46:48Z), 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/CAZ700803252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc01a75d8094daf1ce385d7a6101cb443bdbf05459ca5f4bed03589380f72b760. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/CAZ700803254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fec320b90a535fea246c5bd36a132fb06f1177dd0dd4c1c7d0b7154a9dc0b88. 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/CAZ700802690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0903311a7bd75fa65184360b3eac73ca02aa880ec5a6a74e0ea23bef4223d5a. 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/CAZ700802694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedc136397c07844a026de2b9a7b3e6dd220dc9967d084ffb74100cba9d54754c. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:23:52Z), 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/CAZ700802695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92762bfcf8457d0d62a809e7b2d07459e4bb6ffa485daba50e174ee50d0a00e5. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/CAZ700908335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa2bb63f9b991e0cfeb852a9cc59ec7949fe8a94e40edd5838107abfc38f8153. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/CAZ700908336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28d9705d5dc9d0b29f3d6b23f4fc9a549c0867fd065d17d31eb1745e8914f45d. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/CAZ700908338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0557a5a0a281633e2a938b62806bfa6c32c7f3c74aba9d52cfd6eff95a6a9e55. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/CAZ700908339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e244a6cdae74269f3ba34c5882607bf3a0d9b38a727656820cd7457adcafc8b. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/CAZ700908340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15c0297288f947d43cca1a01dbdba28a97c7b8232d0acdb7f0773cff3879c685. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/CAZ700908343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8d469cdc0fd38026ecce66ca85d754142e1875a96e571167ab12b1bb987b2db. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:26:02Z), 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/CAH061300055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5596fabfe9d55ce2e5fd78ce4a04bd9d574c04a8d3ce667b94fe59096e3d23f. Chain 2 (Bitcoin): anchored in block 957638 (2026-07-12T01:56:41Z), 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/CAH061300059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16bbfbe97bcfb4efc96f0089ea9f57b4b12dd5c46fe3cc4b985e5db76171dc9d. 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/CAH061300060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0859cb89e57ed8d42548c15cf1d2693cd35265245de52eeb94f981a404c7a9dc. 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/CAH061300061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd74cf15f62aecee3dd9671ee2549f551347055721df03ed84cf02d90ae77d3c1. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/CA9XD1500065.
I Knew the Bride When She Used to Rock and Roll
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd0e73e3eab4e581252f53c21b58a2988e441edf0b8a4c279a30df13405071a9. Chain 2 (Bitcoin): anchored in block 957644 (2026-07-12T03:18:52Z), 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/CA9XD1500074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf061e59cf647bac8fd02c1d44ec07cea84cbeb1ec08f7b2b2c25e0541e40ac2a. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/CA9XD1500075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f496049e367542c12ffdd79d7b8a58b43eb7a1c72523537d67851eedde12c53. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/CA9XD1800077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8a8e3d9f19a96f75e592d490bfbc514c091f9fc0400b77f58d74bdbaf25b04a. 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/CA9XD1800086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d15e20acd82b33d7a007771facceb0e3b31d8488d934b0449611482ebcdecf7. 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/CA9XD0900099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13c7555c1821d9ecd7596881746ab0890b513bdde6582f8b32c144123806051e. 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/CA2EE2503002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8801f2c149039bdb8173c7cf9bee02afb0ac4201ac3d5858750a9815461f6f4f. 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/CA2EE2503005.