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 0xa7d66cb7e6510758b145038afe7bf92492520dd06512171ef37c6e630338768b. 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/bb6df320-c2bd-4f14-8692-d71fa61be5ba.json and https://artists.proofprofile.net/proofs/artist/bb6df320-c2bd-4f14-8692-d71fa61be5ba.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 0x05073f2794bc3cb382aee6795e2ef01f34c7488b1038d16e63770894326bc746. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/CA5KR1833972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1199932d54619c0b26d1924bedfa62c0410bb253f3e702d4fe8f4947d899d004. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-22T01:17:54Z), 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/QZ5FN1935854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x211302090e31d85841a4aeb9b8c114b7fbf302a5b18183a7a081ee9fb704598d. 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/QZTGW2100759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93aa43ac640ecb82d690ee13b669c9d4924e461a094c7cac838dfd9f7961344e. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/QZHCR2200026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0839bc30e368201702baa33edf406837c0b4738eb15350c0bd2ad9233cb54c51. 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/CA5KR2261395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb1ae0cdd805d36fa010b89aea63d49636adb4bf50a3366812a8ab6390ff0d95. 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/CA5KR2479955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e05c4dfb3f8ef873a5e8164fa44b5285d1ba7eb4f8281ecc5cfaf3b8ff518e5. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/CA5KR2479954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf65fb9218600600f5649ecebbb06d37bd4de51bb50347db1b06420dff070436. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/QZTGW2400411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9da995bc6b30d5008bd723074707dc5695cf843d9293111d3b7a0a07f2fb9047. 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/QZGLS2494709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ce245daa2058192bbedc37ed810238cdb08560aaf9d0e991bf322fc04bd8677. 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/CA5KR2177604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3df9d6e60124eb0067deb656df98363629c0da30f94ec97d87cb262e6e41057b. 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/NLRD52302472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe581d558be8749a8f5196f0166e290738beb835c033d3f47c3c2a518ebeed21f. 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/CA5KR1844662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7cdc8807df20aa2ac598d7c06ae6e91bf76e46b18e79ca3d84a424b3807b81a. 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/QZMHN2068482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6175affc5b0fda6290f76125be0ad139721300bef3a13bfb6cbeeff6a0f49feb. 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/QMEZE1949938.
Best of Bassrush: 2021 (Mixed by JEANIE)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd06685ad0edc9ac8ab58701f1a12e5301e735b6a600124c66d5a8dc9722723ea. 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/CA5KR0033228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa90fef9417650c0e247b8eb14c5797a82da2ff3e26340cec2ab4010a289c0025. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZHCR2000073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99e6ab676aa474c8f2d946ae37f9321b851ede7768435848fa9daa59996b98f7. 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/GBUM92000018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdebfa76cbd24b7ff93d163f5c1bc7e896138d829f155bf3da1d046e61c07bd17. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T18:54:48Z), 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/QZHCR2000150.