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 0x156bdaf4b215b9c077efeecf1e14c358bf69d679b6361275ec23d2f3a236469e. 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/9b9f4039-7047-47a5-b201-65374799d52b.json and https://artists.proofprofile.net/proofs/artist/9b9f4039-7047-47a5-b201-65374799d52b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Dance of the Little Ones - 2021 Remaster
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 0x9c9162b4f247746ae4e5036bdfc091b0919ba3d7520c7a745c5c2536c94bcc5a. 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/GX3Q92164661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x803a295b8d4f90b28e62a56a2e15cf603b8269f819e9ab9bbb6ff43c2cddb1bb. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:06:18Z), 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/BRPRX0400473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81a842bed0a5d4ceec2d918d8998efbb821d01c7433275cf3cfa943d45956b23. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/BRPRX0400474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5e232a5ae7e9d0aa02215fe721a1eb7d938634fd99bb478f0a2afcbad40a10e. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T13:22:35Z), 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/BRPRX0400477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeb3218882bc34056781d72e3f58a47e0b0a40d616e62789112a541a0586bafe. Chain 2 (Bitcoin): anchored in block 959013 (2026-07-21T16:23:31Z), 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/BRPRX0400481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9a5259b2912f71bb0dc89732697dedf5ba83378f8a5da0b2327bc4c1bbed497. Chain 2 (Bitcoin): anchored in block 957569 (2026-07-11T12:44:25Z), 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/BRPRX0400482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0abb925f88e064f301c2f81a2740dcedd8dfd1d6d6011b764e77534b86534f2f. 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/BRPRX0400472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81a842bed0a5d4ceec2d918d8998efbb821d01c7433275cf3cfa943d45956b23. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/BRPRX0400474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9a5259b2912f71bb0dc89732697dedf5ba83378f8a5da0b2327bc4c1bbed497. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/BRPRX0400482.
Rhymes Against Humanity (feat. Martin Walkyier)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc725c3e8595cd79d4f82ae900e7ffd647431b307ea414941ed03cb283f34195. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/BXBNN1500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7818b41eeeee552a54762994620e5e8033eae939dd098cfe7040a33e1ea6eba4. Chain 2 (Bitcoin): anchored in block 959003 (2026-07-21T14:42:14Z), 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/USHM91945350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccfc731ac91d1391a0b380e6c1779357be65568ea8e37aa4be481c701d553ccb. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/USHM91945352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cfaf9480ed3b43a9208c13b048ffe41a4c53eac98688103b18793467f23d207. 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/USHM91945353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe13c88eb3166ea20e248bb510e4112d57b16bf3c795da8a5a676482be9aa66e7. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/USHM91945354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e795b19de86c37bf4d4d0d1c38265c58606b9cb000924e44752a3661374750a. Chain 2 (Bitcoin): anchored in block 958963 (2026-07-21T04:02:02Z), 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/USHM91948184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96b908fd5690bd70b8afe57fb88335529954fb9109b4605b62357e1da86bbc7e. 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/BXBNN2000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80f2e3d6a89d50c46571a28f63223026652de6a169d7dc355e335669609d8786. 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/BXBNN2000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89ede08adc3d6848019dc48b15b8d8f2f138be3312464031b695b8ff98a38792. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/BXBNN2000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ce4099741f848f7d3cdc5e4c9f7fcf36d6d763de8963c8585996f531f80fc40. 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/BXBNN2000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1157f30b3f5442dbeff780e6acfdd7cac5fc799f961a335f1e814d7eb2cb795e. 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/BXBNN2000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b4e3d6b89f30a5b543346c494335a3d346376b6d341db88234677223c8428bb. 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/BXBNN2000012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f7be7caa64881d0ef14d25cf2f34b8a002daee0f6ff507a7ee3e0e2f5b6b96d. 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/BXBNN2000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b4638402e5ca87323be5e55f77266f4f8a7267b0fc0c585e60e0675ad1a2cad. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/BXBNN2000011.
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 0xc1a9f05021aceded11987686fbb3ad454cd529675228cec3a89f48de0089f325. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/BXBNN2000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x252ba8b48ec5e30213247e3071751a210059306df197501b7ba87bafc80e5c83. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/BXBNN2000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc454fac2e5b1f1004ee7218ebb8707b7707fb4270c6f5237ebb68b26ff437d0. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/BXBNN2000010.
Live Covid Sessions - A Tribute to Martin Walkyier and Skyclad
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b01a13569fcbc64a30e64e748a3ac0c6a1c3543bf4e9f04668ec9706e606ccf. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/BXBNN2200077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3862b43b2e68ddb76c71a70782f99e89dd6944411ef17d1fe43d960edfc902a. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T20:24:49Z), 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/BXBNN2300001.