1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xd589f0aa138cc385063034e9450be19ebfedbde9450d9cc961454149dbdad7e6. Chain 2 (Bitcoin): anchored in block 954729 (2026-06-21T18:16:07Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fad6cf01-127f-4402-b445-f4aa755f4d32.json and https://artists.proofprofile.net/proofs/artist/fad6cf01-127f-4402-b445-f4aa755f4d32.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 → block OTSBitcoinBlock must exist at that height 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 0xa17627264acdaee2b9d5003372205dd26b2f60df64648cda071f7b887d05a297. 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/USFLH0610140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x528230b2a1e53bdb19067bd887e3f1c6861549541e82c55dec00ffd878014484. 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/USFLH0610145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5c3f38b79bf17c02b221fe5307a8b3d6c2a3b036b09c3a1e5f37676e8f3d1ce. 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/USFLH0610041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e901d65e3ef5312b327d4dd90eebca92109a96b3bbfad44bbb015668e0335c9. 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/QM4TW1546386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf1624745f793887ba92d6e623e84f62c09eec77f181ebc5ab48b7cf8a72cc7a. 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/GB03A1600150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf26a084c4ad2d15e04bb515b233e96e37bf79d6ca2e8206ddc6fb6c96071e29e. 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/GB03A1600151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x732f4b926dac9cd5078cf5911ee2deeb2fc23eaf2b9012dee58a985fe4db4444. 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/GB03A1600152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b54cbb3cc4d5a59051b8830abbb09e48b5547f189c78cd5c8ed62776e0d3d42. 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/GBCLQ2200642.
Soul Jazz Records Presents Soul of a Nation: Afro-Centric Visions in the Age of Black Power (Underground Jazz, Street Funk & the Roots of Rap 1968-79)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d40563309134addd49d935a2ec0a58af13ac9bca0675efae92d5dbf79546f76. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USBB17101029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89ed74ba9af4914410764f6c7dac3714186c2f148ac4e2401c5e066aa83f7487. 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/GBBCK1701200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc3fd60fcbe50d93b90d45cdae98964c8a6e6e4ea333a5271e5d524363f33a83. 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/GBBCK1701201.
Philip Cohran & The Artistic Heritage Ensemble
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05a7b30f6786772b651d036915474b029d2f9db8a952d0fe312b030a3a776bd7. 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/GBBCK1701202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4492cd729fc7d7aa17ea155d67b0fd16a174b4055a136f3f277c98b1ef600f19. 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/GBCEN0200594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89ecd0b2167833b5f371ec15eab6114c1dd17e5bcbbfd1cf59e8ba4a1c8f8d2f. 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/GBBCK1701203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91b571d4a666f73c9a711f510fff05531c7560dd60f4f6b04e2492b8b252a397. 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/GBBCK1701206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7332b569ac675e37e0f45542060170f554d7308aec948e6fda6e0a4e8515f5fe. 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/GBBCK1701210.
Liberation Music: Spiritual Jazz and the Art of Protest
The Revolution Will Not Be Televised - First Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26529e0015f1299aea4dfb82adf02d4c8ce77edc2902e96a99310e34f691c2ef. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/USBB17401008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9af38494861b437442e1d226aaba186dc57234259a164096871bbb31248153e2. 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/GB03A1300082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x691fcc0a37dce211ba61e6475e961511475fa2652eb5be9227a1ee10920b94e6. 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/GB03A1300083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeb754a377f54abd5706d0ab755e177783cb6b365f9a46a5128413a9578c8034. 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/GB03A1300084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe77ae2c307e6c1b11dba6da523ad9a7d08e2b7c5d6ccc422d61eb92bed052382. 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/GB03A1300085.
Excerpt from Speech #2: Do Your Own Thing
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9ce4ec424f4edcc98e073e739594fc4c7523fe6b0cd9398d0eabb0f62deecc6. 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/GB03A1300086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3936aed12f336f47ec203fa2f9349419e196e3e5621238259db6b2f045cb1e67. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-07T12:58:18Z), 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/GB03A1300088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac903d7a63f04f70563feaf05afc82f5d4faeedb8a52c5f2e0fa04f0f9099b6b. 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/GB03A1300089.
Horace Tapscott with the Pan-Afrikan Peoples Arkestra Live At I.U.C.C.
Horace Tapscott with The Pan-Afrikan Peoples Arkestra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb21828efee49544ae7adfb21a0e050a1829dd6e8fe56e1346aade722a27fdc2. 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/GBBCK1901401.