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 0xd94e53039024a5df51abfb4a697f7974f11c59dfe85c61ac5a07e0a20ed0aff7. Chain 2 (Bitcoin): anchored in block 953618 (2026-06-14T09:16:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/19af0e0f-1029-4d07-b467-47621c8dcb4e.json and https://artists.proofprofile.net/proofs/artist/19af0e0f-1029-4d07-b467-47621c8dcb4e.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 0x518c823a120734ceb35ff98a62a258032751f233a342cec613dd40cb642863e3. 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/US83Z2003955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8732fd8ab84686968e870d0b399387a39dd2a6403658fd271900ee69277c1a93. 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/US83Z2512370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22dd27c88e0650c0a86b5350662b114ea7f4636bdf6ffd00c5ac045aee9e8d74. 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/US83Z2512371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8114e80df5003f60c58958799d818cf3e3b1350f89ea7909925b64d519172952. 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/US83Z2545087.
Deep Truth - Hernan Cattaneo & Marcelo Vasami Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa15b5f8e1247f77ec52156fba65a93aae4aaf5296ff15c778632f45e82af65eb. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/US83Z2545088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d45e0f2de7ba5362d0699d9ac81441e23728009bf143a782d5300d24fadcfcc. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/US83Z2545089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57c498ec93d2c44e2c3a1809c19ab9224a5b22a3a18ed3bb6718fa78553ee999. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/US83Z2545090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb32d3ab935fd023fab11921cfa6f4b1f55d1412d3d8909a4f996dde4d2625835. 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/US83Z2203671.
Allegro - Kamilo Sanclemente & Juan Pablo Torrez Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75235263958cb0031f0ff99821ba3a1a19963e57a11734e45c312bc364b97d55. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/US83Z2353213.
Ipanema Twilight - Dabeat & Juan Pablo Torrez Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4981d7d45a49112c213ab8a35f2d1828047462f8f0668ab906baa61dc89f4e7. 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/US83Z2202757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f5280e075798cf59b9239253f5cf46a34bc914c7a0a82e4cb25dd197a53cf93. 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/US83Z2149172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e91a1a986eebff4fd186d39be45f8dae451eb6bcad44d5a4d3c49db7c22b238. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:39:11Z), 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/GBSCL2095023.
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 0x36378f6758294770d5921252996482218e34ea6ddf7c554369146086002fab5b. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/US83Z2469636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2510e7fe89664718a228909c029268d9242f6e59812066c4b6642ee57c3ad027. 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/US83Z2203672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78c08359fe32096eae44bb66b18d98482d7b0e11583bec0022a751e1b1ac9a47. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/US83Z2203678.
Allegro (FSOE841) - Juan Pablo Torrez, Kamilo Sanclemente Remix
FSOE 841 - Future Sound Of Egypt Episode 841
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cdaf30d63cab4fc091c021e0e647dfddbbf903f665c12e1a82acee65332d151. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/UKRMQ2400062.