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 0x05036f249675f1cfe10697ff08cfea6e0972f6781e759bcad6d67ed937402a78. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9ecacbe2-06cb-4291-9795-4519003981e0.json and https://artists.proofprofile.net/proofs/artist/9ecacbe2-06cb-4291-9795-4519003981e0.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 0xc8976ad2ae9818c0dd13ba6f30f5f0ec4ca4c60d3179d554c1aaf5f42ba86044. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/ITG272300474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x328801ecbe084db2672d10fce66bb0d21f049fec46869a0b21b20aa374e65b9d. 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/ITG272300475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7199202a5f9764f3a36469e72654732a0794696eff2243c156b62379a531fe84. 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/ITG272300476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x620b5d47f74cd16951a990839b6ec1324a34a5c6ec55dfb6162dd17d580a7c8d. 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/ITG272300480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68c32bc251cf9c4b3aa41178a168063caae88ccef13b487fcc6fbe07f95f615d. 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/ITG272300481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57c70ad32d19627a2df0a4cfcddb613f2c51550d38aceb561f54b9468267ca15. 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/ITG272300482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbfff3f1a75c92bdfaf5cbab3abb57ca9c55fe94f8424ef8afa986ff62d1ef8f. 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/ITG272100145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a5ed65cb7a5d59dc4b513aa9d51ef097d6943e9313a2ad116cb5ab3e98867d4. 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/ITG272100146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1b5685d01da6cd45635e6f5e46f1d93c9943fc0c6ba60020b2a36351e051505. 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/ITG272100147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaba0afe318b6081560ba3c8dfc6e9812c0750e8936030837ed29afaa53a3ab3. 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/ITG272100149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2cc122abed09cd7d202c5866706c9d807558d914df46281fc13f5f898d687bd. 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/ITG272100151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09d545d9d84f3dacb151ea80b1f5b9a789e09417f70e56b766b093e9621b4cb3. 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/ITG272100153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a048de71bbea7cde7e7fc4dc9e87ac9e8415d3e7c306490b54cc569eec55d24. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T18:07:56Z), 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/ITG272100148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36bbd502d0edc67cd73e7d4de5e5ba72a01bc3250c4af17e6d25f28ed9393c67. 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/ITG271500390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb6f71a52df3161cf308abc9580dbe18bfb85c94e20898e6b6cab3e0a5e2d3a0. 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/ITG271500394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff6efb82c7de31535dfd2ca3a09cf5102f61d730ea3f0a0b7998d2293f010db3. 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/ITG271500395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79c03f12009f704589f1668611ae5a1b8f8b918c121b83a609c4e4c427c90f68. 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/ITG271500400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbfff3f1a75c92bdfaf5cbab3abb57ca9c55fe94f8424ef8afa986ff62d1ef8f. 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/ITG272100145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1b5685d01da6cd45635e6f5e46f1d93c9943fc0c6ba60020b2a36351e051505. 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/ITG272100147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x369059a7c017b315c9f8fa2e444b85cb6d4434c0f3abd368fca456503c330c3e. 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/QZNWW2445938.
No necesito un doctor (I don`t need no doctor)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1e27b4d42131de5a3b095ef33b9d712db5b2a0fbbbc4b757330adf918f5f1c8. 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/QZTAT2428621.