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 0x473ee0a474d65a373b9e157cd9f7570136041049009bc333e85b9304f5071033. 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/8dab8d29-532c-467c-8b9d-066668830ec8.json and https://artists.proofprofile.net/proofs/artist/8dab8d29-532c-467c-8b9d-066668830ec8.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 0x9d4106e331fbe3cda9a70fde9ecf2ba427fde8ba57c89565fcc0900b18ed7e0a. 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/EEGP32100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90c4078b9d8e53ca48478bc614106fd1c945ffc1fe8d450a386da81c6df6ab56. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/EEGP32100006.
Niewood, Adam: Epic Journey, Vols. 1 and 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86ca19c658e2f5a6ad532eae61e45b01588cca93c526d8cb4597cae0fb92b217. 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/USXXS2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87069ad0654a0b6751614bf29f212f0bd464c39d4f324bc867ec90935fb85e76. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USXXS2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69611ba5f8b198fca7c13e82fd55c1e0c7be9966e2f3d7e15615844f713ce477. 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/USXXS2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc13c44b43a2876e7f73314a4423debaa3e559bf771aa9c763f982f1d22a3d05f. 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/USXXS2400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bae7e3608e1d64acd27e172150fae71afa53a93c004fe8e8e0e92a938fad67a. 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/USXXS2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8010a1978f2cb998ed3b7ba8f5f979fcff00ea958c28fc1a0fac1ee045ac1695. 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/USXXS2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x083a0c69618ec2b4411d6ebcc98f28fb0d5a591eec111d29d860ac52d2b7219b. 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/USXXS2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0902406074af00c3f1d7c8e12bd5f29926b9a683cca1549ce0d139744e553d9e. 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/USXXS2400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59a88c2df50cc342d42d1491378c637ffbb05455409906fa0ab42081262ff0c1. 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/DES382357001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5495242c9ddc66333faef64e6941979da338e721f25c8f460fd5e11bc7feabf. 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/GB4DA2100196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac4253b5449fbecb01154c67dec6488178242a1cf5ed420b64b0a84fb9fce2a7. 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/GB4DA2100197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x029442e4974075e4b136b8842c169130db33ca5fa94feaac87775952a29f53d6. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/DEB331758601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a3f5092f81f112c25a6f881f62eabe89a0e9a15d2e9b28e2689e77e041b8ef7. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEB331758605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96030bee3c50694487b7f2917dc902ee8e822856b3683a78bf55233bb0f85031. 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/DEB331758609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x582675f23493740cbda63bf2d8cd66322ab09b392341c227fbd454d4b5ea116f. 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/EEFC10111010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17f4ad1e5ca77496ff91066c1cb909e7b7d160701f40cb137786b19c9bb1d7c5. 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/DET390924204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69611ba5f8b198fca7c13e82fd55c1e0c7be9966e2f3d7e15615844f713ce477. 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/USXXS2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86ca19c658e2f5a6ad532eae61e45b01588cca93c526d8cb4597cae0fb92b217. 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/USXXS2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x035b07af466558025c0e774aa89994cb9def9b29656cdc3796d3f20566d2aa8a. 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/USXXS2100014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0d09d46f86ac6cdcc9792fcc9a26128c094188958790042507fd01c954fbef7. 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/DEB332482501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefd6db33846f6cc083ee9393aa4d6e21e8d5b67424ff333b72f7be4f6f006556. 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/DEB332482502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46bcf262c97af6c6077dd27c9bdedfadbcd40ad5c6d85ccbf1282b42627e0570. 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/DEB332482503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x702864c8ca0c88d7a9b15e8ad094b25ab344940ad57728fa83204859469f8c7c. 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/DEB332482504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2bc6919a440520690b250c27291004578086a9d2191e10487b9305ffe15c471. 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/DEB332482505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09c3b1da2a0c34376c6d1e90802393e5bfad3f3593a1d88cffa71d52e6b6ee59. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEB332482506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90ccfc7243f9b194590c1f9a2f01439bcf83ada8aaa539dccb0daae2d024c894. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEB332482507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeefb14afb8e79de9d6e01f571346ac4ec6d0bc40a877bdd88af3e0a691184705. 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/DEB332482508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0d09d46f86ac6cdcc9792fcc9a26128c094188958790042507fd01c954fbef7. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEB332482501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09c3b1da2a0c34376c6d1e90802393e5bfad3f3593a1d88cffa71d52e6b6ee59. 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/DEB332482506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1685a697f0783ba78081623cfdd0f4134b4ff86784cdc0e470070903dac3d551. 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/DEAM82300023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15c3567d2f1d79747c74a2bc05380329522522c6504928cd179c53f41ad6c388. 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/DEAM82300024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69fde310fa7fbaa0c618af80c60935d0b4be00506fabd7066830231ad03ab3e6. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/DEAM82300025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x294435fab0bf21e6d427a079cf55f8695650005fa0c31752c8b1007acae0fbd2. 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/DEAM82300028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b900513a4f70e35db76df1858c4a809b0b880213445bde74d782fc5ff7e8931. 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/DEAM82300030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2bc6919a440520690b250c27291004578086a9d2191e10487b9305ffe15c471. 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/DEB332482505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c47852961c462090030858a316124054e20eec4959dcd816788b70e54425f61. 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/GB4DA2000145.