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 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 0xb338387ed09134bf0798e4840c6bb3a0dc9548219acee2011bbd46f7846e6237. 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/3bd1da2d-8810-46e6-81b2-06875e029a7f.json and https://artists.proofprofile.net/proofs/artist/3bd1da2d-8810-46e6-81b2-06875e029a7f.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 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 0x927dc7cb3a978a3186a2f970f0fcab9d77b0f875148194521b617d4db319b0c9. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FR05P1800211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa887ea31027ecaf475cd01ec7dd1b408ad3fe08de89d40aa06829dee5c313857. 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/FRO5P1900269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21576fec5a65e5bf07813880cd98df8626302bfd0b3bf60417c6878da4c251ea. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/FRO5P1900270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4315e584ab322a3debf8e80e2d58919cb3db4f62a7ad7f3f1326b788b5728cd0. 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/FRO5P1900271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaa54f8b4f25a233bca5304151c0ae41831a586fb16227db498111e58d5943d8. 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/FRO5P1900272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9440bf654444fe0e56f23742fa72d5b3e6ab2721aace6e2b1a601c4e222d6048. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/FRO5P2100349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe77a753061489d54ff79e87929245169968405425b497aebea1042acc980b8a6. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FRO5P2100354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03c71dd5320c715eb04635c8ab18da11c68ca48ff31a5c512c3d032a9eb4af87. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FRO5P2100353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61fbc12e0225dc5308a4e3b8736d96ce6023f0b158fc3ffc84147a2bf231306b. 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/FR05P2300410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5fc450ccfee6b82eb4a873ed60aae724c1d5c662862682043ed143782391f7d. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/FR05P2300411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd7ec8f525a9e249521fbac785bc9a4dd7701417d95c4bea5fb4804edf7e70a1. 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/FR05P2300412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ae6bd2884eea00f48f032aadf217990bae87518823d177a8bc43736dd7a60c6. Chain 2 (Bitcoin): anchored in block 958678 (2026-07-19T05:59:57Z), 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/FR05P2400498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1ebaced9804b0351522bfaedf757db3ad2a6721a8bb4b113d758fcd179954b2. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/FR05P2400493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ae6bd2884eea00f48f032aadf217990bae87518823d177a8bc43736dd7a60c6. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/FR05P2400498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd47833b836169dc74f12c70bdd6ece7643f9af523c76be090115e32a0ab7e9b7. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/FR05P2400492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x215dfba8be4cc59cfdadde067735f5dd7b902971f790e7f48c608f3aae2ab878. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/FR05P2400494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3a1f8ca46d1bff7e4dd6e5106333117333f191b46d28a566b3cd9a41099ede8. Chain 2 (Bitcoin): anchored in block 958529 (2026-07-18T09:21:41Z), 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/FR05P2400497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1ebaced9804b0351522bfaedf757db3ad2a6721a8bb4b113d758fcd179954b2. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/FR05P2400493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed2b6c41a28dc6a14557b11c7f0d4b045e7f00be38aa29d0a3a7f3d070096105. Chain 2 (Bitcoin): anchored in block 959018 (2026-07-21T14:12:28Z), 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/FR05P2400496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7450d9bf568d6f99d61f0818651eb2832141d31a6e79d60bd3b9f66b40df24bd. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/FR05P2400499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x549f9e0e69c4d2ec142530894012a039597929d1cd1938103b03f8ad613e0cf1. 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/FRO5P2100350.
Straight from the Decks, Vol. 3 (Guts Finest Selection from His Famous DJ Sets)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd7ec8f525a9e249521fbac785bc9a4dd7701417d95c4bea5fb4804edf7e70a1. 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/FR05P2300412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x373be2fb08de9e7c1413d5a562cc7eb2648f668a710b87c395e983c825cc5bd2. 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/FR8FF2100008.