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 0xf616ff5e21da9af6e8c66c47441cb285a3c680e3d6dd3818e3a2c1fcd8d19aca. 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/9b48a11c-067f-43a1-a6d2-7ead989526ea.json and https://artists.proofprofile.net/proofs/artist/9b48a11c-067f-43a1-a6d2-7ead989526ea.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 0xb8378eaba0878a5a399e760597530eb7306df17f9758152ea033f57b47e6f8b9. 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/NL2GU1900006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x214c32e56b0d90257c7aea9c42fba8156fffc6b1dd738692c174cfef2a57ef3b. 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/NL2GU1900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4939567fd5455c6ee89840317f2682e0466aa993b9b7c0dd23cf68a4f8b6b8e. 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/NL2GU1900010.
A Woman's World: Songs of Resilience and Hope
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bb99369307a21ba4ab03242aca92f1c73c257c932b36a1ef799d20098f5559c. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USHM20917275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb73f101c7f6067c03673361ebd684baf528abca09d4a8412d300db44f69b518. 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/ES66B1500066.
Jasper Somsen Invites Anton Goudsmit Live!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e74cb866260fada33e593d1a1f7803a85ebd610d1a9e432e8f70de430b78de0. 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/NLB152300945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea372e78e880e50991e302ce6e512b7c7739ac5661808d8968a761992d45b3df. 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/NLB152300947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a6f6f09ee303a01352a04365a446b6f7770dd8cc791850550b1f24369d57e96. 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/NLB152300948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bd996ccc565d6a9d2c8868b0a6f5bf3ec8d76b789e8cb79cf4824c9a8f3ab60. 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/NLH212400038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb83b2d26a55a14c7388df5cfb5616e86a9e2febe20f4c744adc1b3624148ddfb. 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/NLH212400040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fc09e7f8b3e97c74133c6262dc3ae3a713dc6e964a869d4dc89c6e3572f5682. 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/NLH212400045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4209ca4bd6ad186f00bd26bcd95266b7c50f4392594dbdd89f1e256d7434713. 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/NLH212100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48c743defcca9fc5f5e04d2c7a7db5e75746de396026280d64ee09c83958e0b7. 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/US3F71910704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0906f35185f322abbeac2bc6034e7350d91dc348ae40e878305c08632c93abd. 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/US3F71910705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad070a4ad1397bb5468643ffe18771a145f1934b2a31dfb4f2ca9fe870da4b37. 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/US3F71910706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb83cb5008cfcce2d79bb5165de0d2474c8231fe87e6033fcf4a214014bdf8bda. 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/US3F71910708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba20ff04e2e61919a7e3b0ad3cd9a92050c4823e5a07b43f1b21a37e68c40d26. 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/US3F71910709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3477fd87317151b7422574e43892a269dee135516fe71542b1ab7f73a0111342. 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/US3F71910711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf490793689c4ea42ac9b76aefce342f6ff711648078ad14dd693e54e47397733. 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/US3F71910712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb49196f29eb618d93be49015cbe3c7db45a8271bfd1dcfdb9098bcb0f1c8c6c8. 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/US3F71910713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1babf81dcca52387d69bc76616b89d79c75a8fee61c82e0670423f2c3bed5893. 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/US3F71910714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ee43bfdfd93818fabc261d5e5eb101400ce8bbf5c98feb8990779b822593374. 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/US3F71910715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ad42123d43d477d212d65cf4bb6f5670cd016a253e16d47f8e2b356840a05ef. 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/US3F72210919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0e43a48e2b1d23ea4d1cb609fd389959e1faa79d2c71f01bc9df4f43a586ab9. 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/US3F72210906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x877a68a8cdeb15adb8a14ed2258403d79912b36770e742ec605385d52c6c47cd. 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/US3F72210920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a888be00c6fd7283b2a5ca5f2357ec1cb16f15e01645183a57cafb4fdc0a3c7. 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/US3F72210922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff4a3f8d923741f4ce895e86d5ba7ca6aa2b897950a37acc21ce8a9bcaf4b9fb. 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/US3F72210925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5be372072c4b84e86575847fcac857047516173515dbb1e1e3a6f7636eb5df1. 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/NLW4X2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24feac45a32302c411f473b2dde0d54d527e415e7234b68b705e2b7c39c6b4ba. 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/NLW4X2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa938c2589147510316a4f19ca8cba57050807fec5efbc044546a9213615a24df. 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/NLW4X2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf70342d0329993d6f1af487fe27372d69ba940b4edce7080781e770346d72280. 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/NLW4X2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde411e7c4d6d9bbbf34effff19b5fb1f666d4c9ecc7f80599a38d083033bca7a. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/NLW4X2400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0e43a48e2b1d23ea4d1cb609fd389959e1faa79d2c71f01bc9df4f43a586ab9. 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/US3F72210906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fff7533ba8e7357e1ff75695b083ad94f54d2affedb788bf2971774849b0268. 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/QM6MZ1598175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d23d125dd290579ab4f3e9d04da31b4333ba81c1076ef08836f4ff49c9f5e20. 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/QM6MZ1598177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31d4a7b991f48741ea3feeba3e34368ee52ac24ca4d4150025cf8ec9c8c681b5. 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/QM6MZ1598179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4becb907028665e8fc73d8ff889909d864b1e6eed6d7fe9c6434a0c49f1b2401. 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/QM6MZ1598183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f191060295766f44e6e11660d11b8c516210d45775439b425e63d1e40acc603. 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/NLL6R1800825.
Nearby Distances (feat. Mete Erker & Anton Goudsmit)