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 0x828290a99e97643eef24ab3c1a52586b4992cd23d409ff69188b7a5e2bd9b35e. Chain 2 (Bitcoin): anchored in block 953695 (2026-06-14T21:42:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6c272621-0bbc-42c6-a49c-cf4b9ab4785a.json and https://artists.proofprofile.net/proofs/artist/6c272621-0bbc-42c6-a49c-cf4b9ab4785a.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 0x8279b36750e63c57bc58b0bfa95a76f33ad2f90fe96866d374ce4b8c07617a6c. 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/GBCKV0412808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90f33094938dd65d4f0a8b633c6d65b48a9555f8db1c16022459184bdc82514c. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/GBCKV0412805.
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 0xa1628d77d53794f578ac99e6ff22eeb7315763156014fc12d27e27ef0978e469. Chain 2 (Bitcoin): anchored in block 960407 (2026-07-31T13:26:30Z), 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/GBCKV0412806.
Dentosen (Shit HotPod) - Rewired By Yasume
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6d3e5f9d4c37632f93d9380489d9d9722f2038d5767d169d7bed5f437ddea38. 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/GBCKV0211201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x766b39a2082268d24f7e9d8509482e36e82afc300e25d7ed52934533a4990bc4. 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/GBCKV0211210.
My Favourite Kind Of Irrelevance (A Metamatics & Norken Retrospective)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd334137058ba09ac65352f53f2ff127622825dbc958908ff6a7728eebdb2e6b0. 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/DEHM70800039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0f4a736e3f9fbe561bfebc6fe1844bd8f8006890410dcb7114594c5277e579f. 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/DEHM70800044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cf3512c8b2661159b2bacd3b8ca45177e95dc2af2d943d3748123bdc6ebc81c. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/DEHM70800041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x686750c4fb1bb205357b765d8a9997d82f9004b4e7d9f10fca16f9155c12f19b. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/DEHM70800043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf03366a93d4627bb6ed958a8a92835d13c5cb2f7b88da28ccb4ce83d9b406b30. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/GBCKV0209801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x254f3ec25d0ecb1e74ee8181d3eee26eacc9e36b1be510fa6fb3726292826253. 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/GBCKV0209806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67ecafb945c40feafa97fa43748265d4de12a2db7831ec49a221c48176b19ac1. 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/GBCKV0209809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a376e867465a088ccfcb921ff604813e75187dbaae4c09948b93e1740aeb823. 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/GBCKV0209810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x944d50bfde50ca6d22942b2882e2763de25a1bae31e2c6088643f1ba256ecbd3. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/GBCKV0209802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad79e9801c813ddb65d8a9ad45d21d3398fa713d71d733cb03106cccb78d9410. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/GBCKV0209803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ecb2b37098fcef18524989d8e16ef7d0cd1cebc4e3f47c8c70c1f67f628ec84. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/GBCKV0209804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x998add18cc716f70e268a6ebfa497e27896bbe3475f2a51bea3a17dc943e1e5a. 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/GBCKV0209805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcef48818ed59b393464f6ea25318ef24b930a092c3c9df0dcd9bb9a4414f0f45. 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/GBCKV0209807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44ff02cbf2957522e8ad2f94743f554ef50c33ba5b6c1b81bc954906b879285a. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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/GBCKV0209808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79700ac1955370c0e61efd8ad23439249d5815983f882f487d081adaf8300f80. Chain 2 (Bitcoin): anchored in block 960305 (2026-07-30T20:14:59Z), 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/GBCKV0209811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63e8c390586513cf56868eb56eb9c982760239ff128cf63c1ea92a8ba99cd103. 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/GBCKV0209812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7371761667ad993b60834e6b18dbe0b37f4239e100a4d052ad8eff647448dc82. 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/GBCKV0109101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cb65c571f75ae9c46a55e59062cabcc38a8de8d9ad93f20fab9abd67907d9ff. 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/GBCKV0109102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa7a8c5701732d4f80024e59f73c370f98f3d94792cf9acb45b18e95d3faed75. 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/GBCKV0109108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0ef899a7a085a8c1cf55675635932b0f60c68c9e76fd0d00cbe24665c5812b4. 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/GBCKV0007602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7644d811af38153e4be02e34a454832d118aff31ad21557edea4f8f8d49a46d. 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/GBCKV9906702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6257da1f492f5a0e5d88fbc29b91fbc5081b8c9a3feae8f8e0c111dc7dc46dcc. 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/GBCKV9906705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01b6fd53af93f2e4c3ca0b142c3279015e3a0532c92905cf2f19a2833f22f8fb. 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/GBCKV9906706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc01a154f4df3daae9f80b86b0b3b575ee9608b78b10a3996c6b371d867f62ca2. 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/GBCKV9906707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f3a5ee48e30c6988f3b63bdf83f7a02a97180a7c03291c8afdb3fb4e256f4f3. 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/GBCKV9906708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdd43ff9c129a020f42700a11c3d59c1d03c5bf2f7b222cde3c6904b4276994d. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T18:56:13Z), 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/GBCKV9906701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24a721b23842a4eaac243ad592c5c71c60d42ee23bb38230d89137498e58bbc0. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/GBCKV9906704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0906cf7bd6e255c7256c177db0460f76a4fd00a1147f5c72e164796de59c4725. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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/GBCKV9906709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45e07ef79629429b1d84199688ffafb1fdc34846b939f959578295e53aff21fd. Chain 2 (Bitcoin): anchored in block 960387 (2026-07-31T10:06:30Z), 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/GBCKV9906710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad45235a1a04cbf7abcd9c6486d0e389c84fe207be0f763f21deb55192dfd7da. 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/DEG930200266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f43ecf16562917a06325b6086d3f15a9c2b603d3cadb497f92efa04248b5f01. 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/DEG930200271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9261476f68e4e42dc4cdc07435f27f332c8a2b30c3212a2347ad17ad6c87a15. 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/DEG930200276.