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 0x63ea18b973ce6f1cab30b89af9c33bef5391e12b6e0d013cbddb0582091fb47b. 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/22105c28-cd54-4271-a715-010fd5f94bc0.json and https://artists.proofprofile.net/proofs/artist/22105c28-cd54-4271-a715-010fd5f94bc0.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 0x88a821eb733f0e683694dc2f54badc4b96910a7027069c5503aa57ef2c1c913a. 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/CA06H2100134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e1ad7b1b9a742763b3378d2662d1f2c83899dd745ac828c1cfa58eaa77eb6e8. 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/CA06H2100135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5255ac27c8282808510a83de565c4ae8838f15c744d7fa709aeee67594bbb907. 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/CA06H2100136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae7b9b9053f69c6d9e686856b34a556ed2f00d4bdeb3448552ca43dbdc73ccf3. 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/CA06H2100137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3d8073735f547eefe8360b250d0429984a44d1399fda075a21cfd25deebbb13. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/CA06H2100140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b2ff7172a768a2ac5057b81e28b41b7dbcf2d274052cd81479ab0b810fcf231. 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/CA06H2100141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60a8214cdf24e24c7eb3648cbaafba5766a22057db5e429620b673d3d1d77f50. 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/CA06H2100142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1697ac6c67936a559a5b1e00958c24f78bfb2a21d0282f9d0caeed840c84ea27. 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/CA06H2100143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a1a27af2484af6295cb6e2614f68db9c56a3ce155283fc1a3f344982488a19e. 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/CAO6H1400116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf8dc73b6442b8e6ad83a563282542c59cdf7aea82a33c4ba9afee998aea8902. 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/CAO6H1400102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29e8c56c9f361cdbe118072ca25aa651b14cb8a7cae4e741addf56194e7467c0. 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/CAO6H1400106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e84435af7da96df4a5a7ce78477b196747df5010a5b8cc58adfce82ec04f444. 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/CAU118706002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aff76b949effdb38974abfa7f8b093ebf5523ee15f57838be90c42923d1e1b6. 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/CAU118706006.
Et le party continue (feat. André Proulx)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2231d3383f88fd4bed8808463ffedaa3c5577b1727a672fd618092c661c95d6a. 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/CAU118605991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x210c3dce03e588eaf247a3464e2769e9c9bb850bee1e32bb9ab659a32a01a84e. 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/CAU118605994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4516b654eb2cc2272a46e3ea15367d35cd998ec76f7c9b1a07e71dd40a0922d. 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/CAU118605997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24344959b43a851622295136ea894eb175dd2b9b65120bc569aa41c0942b51d2. 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/CAU118605998.
Le Party d'Édith (feat. Clémence Desrochers, Manuel Brault)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8812f2c6fda4bb1dca90bb902ceb9c8764282954393b344974a8c3ecd3d6091. 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/CAU118505977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00a8f491da2acf03d1a34668f024bd3ec8c10a38207ed70f65c32573768952bb. 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/CAU118505978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedbe0d7f7213b387b9fc66516f98dd8033d8b926969a5d40617d8f51166780f2. 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/CAU118505980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa8a9b1cf0ea68c6e928c3727626dbb0d1836d5fc6e418968f147deafc26a630. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/CAU118505981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x175ce8380d16220483d81f9f7892533d87d9a7c5e67e36d69b1485b8d4277007. 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/CAU118505982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18cf3059944ea84a5f53628f0a71e949fc5f5dd1223495b1b9e6ee0830d0f551. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/CAU118505983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55f17abfae7b4731e687832fbd7091e74e2417e115443dcc1d8035d02facf169. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/CAU118505985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f3ab3ca4d2d5e5e4754a22448f360d46c6b194ccec7262fcad27f5ea0f91c67. 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/CAU118505986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb734202c9cf66dbdb11d9b22a360f7827643b580ab0761e7d6c8ddc235ce1ccc. 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/CAU118505989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae7b9b9053f69c6d9e686856b34a556ed2f00d4bdeb3448552ca43dbdc73ccf3. 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/CA06H2100137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88a821eb733f0e683694dc2f54badc4b96910a7027069c5503aa57ef2c1c913a. 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/CA06H2100134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dc82b5320576ea6b90f7edb146c9a5d68148b25093704f52ca741462845ddc4. 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/CAI601207009.