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 0x5bb4caf8a41e2e2b2fc3e0fcafee976509d6b191b698cc305da76af7950aee09. 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/fc510740-067b-4d40-9707-d6221e67ae0d.json and https://artists.proofprofile.net/proofs/artist/fc510740-067b-4d40-9707-d6221e67ae0d.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 0xc812ae9cb7ab7ea8ed5216c30362d20dbcdd276bad72956a87d09afd9743ea8f. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/DERK91213705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77abea0387f009451075c0cf2956b9b6c8e0c5294c37d9d6175322ab49aff061. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/DERK91421002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2eba3b9037d9098d2055f675fae7c9710b6ddf6e58ec7f066436e122b845719. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:15:30Z), 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/SEYTP1703701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5245e7a4421f190533b6168dc30d66f982898d7ba8e49fe60b86f2a7da379f8a. 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/SEYTP1703702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1729c8594f9a99bed70b866d5a2e3855d388778adb6b0c5089c506bf80769d3. Chain 2 (Bitcoin): anchored in block 959018 (2026-07-21T16:50:38Z), 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/SEYTP1703706.
Retronyms B-Sides - senna´s joy (Solo Piano Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34e099cb828a1994d5cd40b868831af237633bcf91f7644894575181a395d6cf. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/GBAYC1902378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfcbfb7f83a96a8e2ff66e897188951c35ef2030e4732f50b038792eaf9b4ac7. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/GBAYC1902377.
Correlations (on 11 pianos) - Dreamlessly (on Blüthner Grand, 1935)
Correlations (on 11 pianos) - I wanted you to know (on Yamaha Upright, 1981)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3046e6dab5b6dc27e5799709b40c726c62ff7c31ad0b5d3a6b1087146c5aab0. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/GBAYC2000710.
Correlations B-Sides (on Yamaha Upright, 1981)
The place where they go (Munich Session)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29abb737c9da15b3657b66a6839deecc4b25daa134102135cf63ac6d46d76f35. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:21:04Z), 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/GBAYC2200939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd23e4e89a17e46ff90ee571d048f2cd74035e24849b39279c1a7fdacb9ae9596. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/GBAYC2101907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x273151f869e6fbf3cab7830f2cf040eb393fc6ee642588558782b9c2c1a35b6d. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T19:50:27Z), 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/GBAYC2101908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc708cf5d4f96c1dea518b264eb1221044ea361782b8e9ccc354244457c7fc0cf. Chain 2 (Bitcoin): anchored in block 958571 (2026-07-18T15:39:25Z), 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/GBAYC2202225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d7807f35cea5fe6e67970157943c36b50a037d113394652824fa308e08aedce. 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/GBAYC1801670.
The Place Where They Go (Munich Session)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec64326a178f8ac85a5cf5dea915dd5471182892a0c080075710639fa4cd04a1. 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/GBAYC2100041.
Soft Classical Music for Studying and Reading
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34e099cb828a1994d5cd40b868831af237633bcf91f7644894575181a395d6cf. 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/GBAYC1902378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31b8500e1b7f39e2bda1e5e59ab84a0ce7c1eaf58d2aa5196e3bd0b6e02cf1a3. 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/GBAYC1900068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0e9d1bc1eb60b193904cdf5863b611bd518bc2323d5183f39a97e7e03561fb5. 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/GBAYC2100038.