1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xf59b1178c6f6b5c7753b7112ce39c249f570bd92ad177e1a34ce71121f1e23ef. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/29e3175f-46a4-445a-91b2-9300b3987bf5.json and https://artists.proofprofile.net/proofs/artist/29e3175f-46a4-445a-91b2-9300b3987bf5.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 → block OTSBitcoinBlock must exist at that height 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 0x95ce2e4eff24f8c103f35e893539532d893664f5466d6228ae6ba7ae59211f47. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/US2HM1100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb58c8bf8da2d553a7f004e9564648bc766a34abf0ac1b8210e52c8aefa4fe8b0. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/US2HM1100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x719f8a6877ace8ee58fabe3e3aee4a4387b523d2738eba42bd592a2820f8caed. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/US2HM1100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x808597be267dfcf748ec117d6f91fdf458ba741e31fe7e2d92260521dd46975b. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/TCABZ1401838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0649f65eb2c85b45d7168f68c5789eb99c32c620b919e9072e9bf1383222324d. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TCABZ1401842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10daa210f2d6501e6e377e905c1344aa4242cf04c2ba3cd99a40123358b84601. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/TCACL1674213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c72f37879eae4f0afa1e8d38bf4512e64d5b05bf6aef707e467d18825675fca. 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/TCACL1674215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ced9cfd1f7e1b4d3260465a01a3bfad2a01dad663033a6148b578a16b87f610. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TCACL1674217.
Impossible Weight (Feat. Sharon Van Etten)
Impossible Weight (feat. Sharon Van Etten)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46ff374fcf85c3da432b92d8c4753c820adb9a9ecb01430aa356ebfd3dba8576. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USATO2000212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ba1f5f45bee6c6e9ba28072487f303be1cf805a9b542466dcc730c9546fa1ff. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/USATO2000214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16e4ce346d5866087bb4f33ab85393451b44b3e6b59ac329bd0d3708dd6bd4f1. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/USATO2000216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ab6a6dff4f1ac21ecb0c37d94302475e67259009c37bd3099f570fb56cfa0dc. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/USATO2000217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0516f9e95a8325a0170f075ea9d88f6d6f16bce1bea32aa75e90b4e1e0c93408. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/USATO2000218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x813eee41ba9258dd3e36ecc6e506eb711b305b3c4f859c78598978ab1cae4927. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/USATO2000219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fee525e36a7a0cba808c0b946c8d990e19fd8a68291bf40bdeb2fc1f4b5091f. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/USATO2000220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4411b08ed405371ae9db877baa390b235662597f76c1205df1725cb53438a0b8. 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/USATO2000221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46ff374fcf85c3da432b92d8c4753c820adb9a9ecb01430aa356ebfd3dba8576. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/USATO2000212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ce00e85bf0fb320d4f75b62f8534732c15e6b6a8d698e2e768d62ed52ffaea3. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USATO2000213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16e4ce346d5866087bb4f33ab85393451b44b3e6b59ac329bd0d3708dd6bd4f1. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USATO2000216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fee525e36a7a0cba808c0b946c8d990e19fd8a68291bf40bdeb2fc1f4b5091f. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USATO2000220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4411b08ed405371ae9db877baa390b235662597f76c1205df1725cb53438a0b8. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USATO2000221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ccf4f7f3c10a95c2b6c8b1569210d5a6ed0b4cf219ade6d732974076a8137ad. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USATO2100276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ccf4f7f3c10a95c2b6c8b1569210d5a6ed0b4cf219ade6d732974076a8137ad. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USATO2100276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e01f62f10645e3bbff8ea06c65db9fca70cd180f4b7dc4cf4ca9760db3fd04a. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USSUB2466501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b0a9318d875dc0303e7b84211a3c6d9d7a28d99744e29bfb8666479c7667feb. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USSUB2466504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e01f62f10645e3bbff8ea06c65db9fca70cd180f4b7dc4cf4ca9760db3fd04a. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USSUB2466501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1060c1c032efdf2138d717e7caa47a6cd5e152f034f45befaf2680ba0527dd9. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/USSUB2466508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b0a9318d875dc0303e7b84211a3c6d9d7a28d99744e29bfb8666479c7667feb. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/USSUB2466504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e01f62f10645e3bbff8ea06c65db9fca70cd180f4b7dc4cf4ca9760db3fd04a. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/USSUB2466501.