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 0xd525e986e9b47ba0150733261089503b12b06a1eb5a268fa329b79988ccd679c. 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/79aede75-da37-45fa-bed1-049e83562df9.json and https://artists.proofprofile.net/proofs/artist/79aede75-da37-45fa-bed1-049e83562df9.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 0xb8f08ad6b6f32bc1904b5a4739be856e1330c844c19e339ca8a62ae2974bb354. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T02:17:11Z), 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/ARF109700064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7c50ae45a7c5708be0ef5480592ed669ecdcc594c64b2ef80300229aab0b509. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/ARF109700069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc5b072e0bd80c28f3e46c8c36e106444f750faa99bbb74f8090d0b2bac0a85d. 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/ARF109700070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecbfe1bf1c9aea7ee4c33093ecf1843c11cb151356c925354e7b84c4cc369ad2. 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/ARF109700071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9095d50b4565f58dc2438ced944af99ead25b104c097dc4d8eaf71e59eedab55. 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/ARF109700073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56b9e60c256b4787bcec68667f8af5b7f290427b5e98ea0f1e24ed0e8a84cf4d. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-16T00:01:01Z), 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/ARF109700075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0149149fcd63a980818b06f07d358dc7ebed8397d3aa1425e9bfe08b8c38c456. 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/ARF109700076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ef608fb152d44443e216cf79d44e005b5c9097f7b0fbdbb6f01336061101902. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ARF149900079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf3d6cc683f20f6bde4f6a3c9a901ca2bc561aab048cb5a804a175a53d01bb1f. 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/ARF149900081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18aa6947889648dd02256dea51de136bcd0bfbea9329a50775227aa5b7182556. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T16:01:01Z), 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/ARF149900082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc65dd1cd04ec607986a70db81e4d3f0148d67dc31e6f1b8bd37f0bf97bb5aa50. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:03:12Z), 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/ARF149900083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2ccabef0679289683d41cfd3ea349857be1e2d663dc0765444ceee3fc8c6d12. 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/ARF149900085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98354034b5f021b903828aff23990cb6064f66ca94105cde9a246048030f8cb2. 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/ARF149900086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf32b64b149fafbdde12dca8504d552d014d2051c0f667fefd653d78804d92f24. 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/ARF149900087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d1c0b58c19ba6e33b5b83747af2ab084cdb01d063c9d1945f044d18d1735311. 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/ARF149900088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1970adbdea520357babb0d1b98fdad239f9f7ca882c39ca9047f0509393ce2a. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:30:42Z), 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/ARF149900089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee3ed652bfa2c05e860e8ce993322e09f4db9af538c3e9b1a7bccef6da5839e3. 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/ARF109700051.
Cinco Décadas de Rock Argentino: Cuarta Década 1996 - 2006
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x552c47789ff34bff30d98443977802e591a06200672c559ec2271b13dd3aafc8. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/ARF109700044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x552c47789ff34bff30d98443977802e591a06200672c559ec2271b13dd3aafc8. 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/ARF109700044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c5e0730eadbdfa19795955c1864ee23c40c52e400b24e70dd79b2703da22cb9. 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/ARF109700065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1eaa889b8fef05a8925fda7ca69968cd46c1492d64cfadce5afa0a5bb958893. 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/ARF109700050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24f63c0dfed7b93ec9882d74eb680429f0ab00efe70ffb890d9a0bb0171129e1. 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/ARF109700045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee3ed652bfa2c05e860e8ce993322e09f4db9af538c3e9b1a7bccef6da5839e3. 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/ARF109700051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf971c7762122055a6ccaa2ec99e8d913c070472c3779fa4083f295abcf6df9cf. 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/ARF109700062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x259efdb045ca7b498068762c1ff7d50c9540b2229b935dedb889be92eb6b628a. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/ARF109700053.