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 0xbd9757c43211f56481f01eb0959f84253dd74453a63a901e8452b3d42acc8a6a. Chain 2 (Bitcoin): anchored in block 953674 (2026-06-14T19:07:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5ee5411b-4e44-48b3-b9fd-312c79f2c632.json and https://artists.proofprofile.net/proofs/artist/5ee5411b-4e44-48b3-b9fd-312c79f2c632.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 0x885b9bcf772575a412edfe5c44c9f8277d40fdff52f7b361f77128f06ff0ad44. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/FR8S70100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b1cfc4a2356c9358228b1aba560707c46303df3db332daf0205dbf4bf7fecd4. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/FR8S70200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03fe6c544f401e370b74f3ef8e3fda3b3a9a775499ae47fdebab38041689cb7d. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/FR92U1000340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x487c8fb7732df3ef173841beb5ccab7e4b00ad060c037430389d8947fd5b2a32. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/FR92U1000350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17c8f807f9712894ebf01cff6bd0136ec4dccb7d5becb9731141b6937c9597c2. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:48:51Z), 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/FR92U1300200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eb0dfb8e73c5b574b67672f7ca7c46efe55fa85935e3d08f023a52e5c56c0c2. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T18:03:06Z), 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/FR6V81912921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x581672b6868f28c0de272dc2efba389eaa553ff5f83e407d3fa9cc9d7e0a1b7f. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T01:59:46Z), 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/FR92U1300230.
Rastaman Chant (20th Anniversary Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaefacc63c4bbc7b864faadcb214b40d8cac8c4b8ad546f8bd790888e0e4ed4eb. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DGA072102634.
Run and Go Hide - Roots Zombie & Gary Clunk Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0f5616fb555629b5c8e98f796babdfa60822b44a6e00699445fc06310053b09. 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/DGA072102636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95cc0cbbff6ce0437a3a3ab259b16aef754023b1807077aae726e84e39809db4. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DGA072102642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a2d3866ef5c1eb454ccdb00927fdcd899f76dcc6d2b17ee280c9451469b5ad2. 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/DGA072102643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1421c18b4201e625565ab50ca3350da9504f24939bf233d96d2375aef3497b39. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/DGA072102635.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66bfa980b53968f34a72f854f29ec687d7c2be45966869fa690a4371f3ffdc4d. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/DGA072102637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2662356ead35597d3073704270001ce10a8b668bb6db68745ce58c62cff57bb. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/DGA072102638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x243c2370c2171d168242b89bfc9e6998ef27f70e333395cd28a0368e0ad318df. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/DGA072102639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e65f947874b341d65c888f34c84192acc69145b9534eb533245244898a62dfa. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/DGA072102641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2dd1ca5cf748448fd6145b744cfacec26dcd89af3429472a5faa75b2d79da47. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FR10S2120782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d1ee6d9a5ee03eb99e64197d499aca7d020b4d0688dbd45f78b46432858041e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR92U1300300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cfbe4f6ef551e17a6d635fa3cce59a0e0d1fe2ff27dad252ae28fab76a13f78. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/FR92U1300320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0f8cdca9781049b5d32b18306eae5ca25201bfb215abff9acfb8d884870b3e9. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/DGA0L2310545.