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 0x6d466885cf831ab6c25cdf8a50b08cd0b4e4cede06e868286f9963b341510b94. Chain 2 (Bitcoin): anchored in block 953633 (2026-06-14T12:47:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/33320eff-6308-4053-9cfa-0940b777a830.json and https://artists.proofprofile.net/proofs/artist/33320eff-6308-4053-9cfa-0940b777a830.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 0x69ba117073a69096ac4a0980dfa40e891a3d6343803190ca09ab64daa80e21b5. 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/BRIMG2445488.
Pluie et Tonnerre pour Dormir et se Détendre
Musique de la nature pour dormir: sons de la pluie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60d734da991a2160571f4201a9d51a2bcdec366e5a23c96f190adfe9a47f4443. 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/BRIMG2204651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aef0f943bfbec345eacbc59992231271b0efd7e2824c50142ad7681126b2749. 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/BRIMG2204652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f7ba67c75e274459246edf59671a9511364967902feb7cbe2031aa042cb3237. 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/BRIMG2204654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cb14573bf4dce2f9f3747761a987e2d9a9fdf6ce6977a6dbb5c7dea7c5b6276. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/BRIMG2204653.
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 0xc52cff2f85ed025c1d1f740c432b612ba98aaab4a8d94764860f7c0e7d0678c2. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/BRIMG2204657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8942c2d7a827a4e7a98d7ba638bccf4e8a842f2bf6c6c45d60d5cf2164391f80. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/BRIMG2204665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x745eddb5b6196598a29977187f468a566805511b59c914e5de72cb7642568d42. 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/BRITK1921060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a55887b3390433b0b63a716f506f5779accb79f98604eb47e57983e6a5ad1da. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/BRITK1921086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97d14da0b610d7191ea53f8e95e36eea3aa9510fb4a1ac5234dd5ba31918a436. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/BRITK1921044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89c598710e6e8c97b094a7214626deb9058182e394f7782ad65d254474b742ce. 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/BRITK1921045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54f17786804734bb9556dc46f43ca379a695c37b65e46399fb8dd68489d21e39. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/BRITK1921048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1e7a4bfca062b1518aa9bc6aa9df34cfe547fefbe9f710ce553aaa2a755361f. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/BRITK1921068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1984d98aeff9e04416f323873f0b48a7bf815e810da86bbfb208cf787065ee9c. 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/BRITK1920645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x948f5fa0c64facffb40d2ae401b0f2d1b8887e993ac416dd00c6aad4b8e91189. 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/BRITK1920648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd84aa30f667faaff4df4a382235ba5885ab79169966398309d29dc23669a5166. 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/BRITK1920651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7b4f72ae979bf0a0b310352b4401a7a014836615f33e29c80448f660c2f9f13. 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/BRITK1920646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33c9c942a7014bbf9f3ba4c85ae06119dc32cc2871db830f6bd46ea8ab507a2d. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/BRITK1920647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4634934e97236ff0a2677934c23f1d4cc8435e063e1ba25c41c433e1e923516. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/BRITK1920653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66b9a9a8747180f3b96ea020fef5d305e4b9e225d098a1c04f19430081e097eb. 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/BRITK1920245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa99e13b5330915577cdb8ae455a1f9c26a5af2c4a2beaa66d96fcc6ebeffc44f. 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/BRITK1920263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa532c51cd3729062ea27fc8ac51ac1a3b77bd1faf4cc7d3c9a9b6ede3327f22f. 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/BRITK1920264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd17730ca3d0eb41b35fca06215fe657f25120985b035f73eb18fd94495620653. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/BRITK1920244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69f075eb917b369b92c39b2ca23487378dbd74e73261d6dc0231fc5f3aa27427. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/BRITK1920252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4854d25801b284fdb6390a3a71fda30a2c5bad0a0e8bb570163ce9bb472aa1ee. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/BRITK1920253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b89e2f0af1e917610edfb50bcec9b5b6a9c247770270ad89d55b74131a36a5b. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/BRITK1920270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf251aff80b13b768ce0dd9c4cd1bb5f90f9c5f9cb3d8895e75e3f68fc174e9f5. 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/BRITK1919857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaae17c912e0b03f52a14d16931feb0f8a7dccf02bf03a824db2b85b29a95c17. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/BRITK1919853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe04d281316fb0d5d763fb1dc5009d8602e6ee335b9469e44e9a85e0ab566b000. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/BRITK1919856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f6a0bb47572090c0ac8dcec4f11cbde85c2c1af59d5f9b0cf4b06192944ac0c. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/BRITK1919865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd3b003ab052c3394e724e4f48b6908fe5a7558acabfc21c3f14f666ac96d1a1. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/BRITK1919866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd8aac7cfa68701699dafa19e42dcf859e6ae6ffec252eb369236db5e976c983. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/BRITK1919869.