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 0x4f6a381c93d5229c39456e1e32fcb19b876ee717bcf882c6077bd6a9d9e421dd. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2d07b89d-9ae2-4bfb-8602-2a7bfc5910e7.json and https://artists.proofprofile.net/proofs/artist/2d07b89d-9ae2-4bfb-8602-2a7bfc5910e7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Definitive Collection of Dance Klub Klassics, Vol. 3
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 0x41f195069b2b2d8e72700931390ac2dff4ceff9445ed4c0f38ccc4b8ca343308. 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/GBYJV0807460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x832e1c4015e44a9d3abcb04f15d060b3ab5c618757c0e43a7fd294576dffc977. 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/GBYJV0807461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59f11a781c7f166df91e565d22649cce159b05eeda8dbfcf032bb52034db2a0f. 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/GBYJV0807462.
Salsa It Compilation, Vol. 10 (Gold Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa55d678395aea96b9d0acbcc8a4ee4e8ff22461ef228bccf2e07cf0ecc41450f. 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/ITR191300282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf8fd9c8bafe9ba296de6e1b04eb7d7e72328d02c9f6fe604b53c26063b61349. 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/ITR191300299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5041ba9ba634ffbdfcd36993960871be8b69ee6e84242fea712c20378f6b3d2. 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/ITR191300300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4bf3dbfc5d3a35071b5877a3461cc634ba9c0a540b3cb7a9efaf8ae2e887f19. 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/ITR191300301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x274539530a3b9c6ed1d19d0ab6f1460baf7d2394bd780fdb8828e8982e525139. 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/ITR191300285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b50e93c4d4572399b8508bc1faf9da42e3d8a4439a0784976d0a50aeb41e5b6. 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/ITR191300303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0d3d997f05b0b0fd12857d00602a98108527544e50b8268ad4da22eb4aff8c2. 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/ITR191300305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ea658160252115b05c5d0dbcaacb71abd6b849d374b41d3e1ebbcec7025deb8. 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/ITR191300306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9260fe66d1ed963b6d2947c2e25d5d76303e7938b26c64e60bc601952eb7f3c0. 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/ITR191300291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x161fcfe380797f484bbffd354eed14deb190f8a451b38ffc2da6ff41a64b1b90. 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/ITR191300308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4b87be77cd9721d842d291f6b3948e5531f924ab0e2f43c7bb4dcfe6385be99. 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/ITR191300294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d4ebaa6d9be4f7c586305d84ae7badde6853735b413500b6801641757c91199. 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/ITR191300295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x806de019ea29cdc8ee78ac6e90b0feed5ac35330e53e42ca7173c0834fdc9f8b. 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/ITR191300297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54040f7175219bf949f36dcc3e5879526e263d7605fa197a2ed9c8ace5fbb3d2. 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/ITR191300314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff07973b135e0de39e2f7d80f5c81fc15d41fcaa3c4be6c908d27951669de7c1. 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/ITFZY1700142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03da04beb9c3ac490f038712bbb2322aebf46fb147a61740b62ed6f38b91ee6e. 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/ITFZY1600109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7172eada5aa2d62e6548a5a24aa2c62f5e05f01f9e65598eed337622a6c09f9. 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/ITFZY1600117.
Para Elisa (Bagatelle No. 25 in A Minor, WoO 59)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c5e5f325e7d2c0e7309495c2c44f3f525e016adbc118c7e58d8a147b028c1fb. 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/ITFZY1400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cd51bccc543827abdea00fa069c8910219c338efab905f1940711fda48d64fb. 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/ITFZY1400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd46ad7aac27434c68d12bfde8f4bc143d5f015bd98b3f61400a8ea1509643ed6. 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/ITFZY1400018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6db7e273cf209a7facf141ba456b5ed85f02f13dadc6053a4587aa55308b08a. 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/ITFZY1500071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x304e76d3191812949eeb33923a590e7f8a2be643b79112785be5f2b32fda7700. 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/ITFZY1500080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e0027f553ad8c0dc9355917a619d84bd877d77f159dbbf744f3bfa863000a19. 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/ITFZY1500081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05d22e533d14c9c0af172e6277c418cec4a7396f667c2bb69a9cf9a27b8859d3. 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/ITFZY1500082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6c4d24fcf221230b2e761acd39296effe53c576a8021bbdae06fbcf0f2d5220. 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/ITFZY1500084.
Christmas Party (Salsa And Latin Selection)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03da04beb9c3ac490f038712bbb2322aebf46fb147a61740b62ed6f38b91ee6e. 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/ITFZY1600109.