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 0x422374788d9478b52e4d13c840615add198a8e4589ca4844a071bf7dcd807b86. 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/d8fe3dc8-06db-44bd-9778-66800bf105f8.json and https://artists.proofprofile.net/proofs/artist/d8fe3dc8-06db-44bd-9778-66800bf105f8.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 0xc2b3807e6e5f752d77d823c94ccca9936d80987051503f7cb3c973fa3394aec0. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZWFS2481883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf461289e16f7ffdf025d5f5359282aa1dde0f963bbaa6e95c2639619e5fcf6f8. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZWFU2443735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7ba5c8d4729213850d51d5682196fc289ba3ad69a2d963250f5d0eecadbc870. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZWFX2448634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1d6ae30a8d5233f5b821001e3a9ca2b981f7b66839c3a50d2bcad9689c9996d. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:28:59Z), 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/QZZ7Q2411095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec13469f8e0a1c469d3d5f8c4b6902e06240a06d9d3f8bdc8fe999dd7de4cf05. 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/QZZ7N2480770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd20ba122d09c1bb45224df7fa6203064b3997fe276efb4b2ef5ead5d1e7f5932. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZZ792478745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf461289e16f7ffdf025d5f5359282aa1dde0f963bbaa6e95c2639619e5fcf6f8. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QZWFU2443735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2b3807e6e5f752d77d823c94ccca9936d80987051503f7cb3c973fa3394aec0. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZWFS2481883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47e9ffccde4324b67d749c3e98bff187a3560749938005e7a40fdea793514124. 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/QZWFR2459552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc018b39329e21ff7876aedcc6228c07de65933d63cf0dac320f126e5fad8442b. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZWFN2461413.
Tamagotchis to Pokémon (Acoustic Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d7bcea09b9b9459e31bd8bf9ac248b4bee7b3903615abb42a5f03dcacf3c3a7. 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/QZFZ42514911.
Tamagotchis to Pokémon - Acoustic Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbd77600faa01d6d57d480a23b1df09722804514fe88144387bb1b60df20c878. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZFYY2528545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9bc54c64aeebf43e9b5ce9d33e2b7e379e53ee097ff6b994e67210537e2e586. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZES62500583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d7bcea09b9b9459e31bd8bf9ac248b4bee7b3903615abb42a5f03dcacf3c3a7. 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/QZFZ42514911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbd77600faa01d6d57d480a23b1df09722804514fe88144387bb1b60df20c878. Chain 2 (Bitcoin): anchored in block 959011 (2026-07-21T16:20:05Z), 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/QZFYY2528545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc46f5f695b44483719cc0b44726e926c8468dc5c796b90b5b569240428dc912e. 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/QZHN42502616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a78805ffe439f54881b2d414bbaf785c1459757681a74b12864ad824bb752b8. 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/QZHNB2507946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d7bcea09b9b9459e31bd8bf9ac248b4bee7b3903615abb42a5f03dcacf3c3a7. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZFZ42514911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbd77600faa01d6d57d480a23b1df09722804514fe88144387bb1b60df20c878. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/QZFYY2528545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x086ca8b2974d2334c3dfe2ee33537ce185c2655f1e266def2f7ced6dbedbf4dd. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/QZTB22552816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b3e51c383b323ee5eecaaae5ccdca644f17737ae5ad30d48a02a5d665ffb1bf. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:51:09Z), 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/QZTB22552825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05b3bbb913958e9443d6d0df18e7f3c23744235d38c9dab8fe5b43174ef1ea65. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZTB22552815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa99ff34ebbd81b4d63b4b5e93199e31ff9e8fd329befc65083287e12d6bf3618. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZTB22552819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x086ca8b2974d2334c3dfe2ee33537ce185c2655f1e266def2f7ced6dbedbf4dd. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZTB22552816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33760c265aaa7cc96c0a5cd54c12fe1de33c5d5e8a7bbfe5e2bdf4d1eefb7eee. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/QZTB22552826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7231327ba9db0b44f854a77c3de7f34c88ec7df8e8769823153183e59cbd81cf. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZTB22552827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c10b95fcf9e03a6958ec5625958ae92f9db431a39d0f17c9299e3ffe035cb8d. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/QZTB22552820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b3e51c383b323ee5eecaaae5ccdca644f17737ae5ad30d48a02a5d665ffb1bf. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/QZTB22552825.