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 0x1f73ce71af2923f9678c975c1e6994025b24367b60ea10da9d250d238676f4d4. 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/17b944ab-df85-4d18-9531-47b4afdce20b.json and https://artists.proofprofile.net/proofs/artist/17b944ab-df85-4d18-9531-47b4afdce20b.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 0x49c219f5375ddffcf763662cc9c4ed1222f077fe1f9fd1f283f6144cf74add91. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/TCJPV2386118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x765c4d14561e5e0c82a3bc366ca93f82dd451da5da0f2ae896f33855442abb4e. 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/TCJPV2386120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dd25f95e600cc37adb19fb4d369f12e47a09e72a94dae5a41c2d778b2aa9641. 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/TCJPV2386124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x645e11fb24cbae1311d8bbffff680fe0629c5b96b12c3b8ac301486bd49365e9. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/TCJPV2386131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66677507b5f06ffad29ae7ed6b6773fc8099015c54c11f26f63327fbc6cff207. 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/TCJPV2386133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd95b1bc843961524d63195f05f99bc5768183c79f33efea37038d5b4a8b37937. 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/TCJPV2386143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabe2fbb69998bc6c577c3a0b485b914904d732d17e1044bb5ca76e7b9db6618e. 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/TCJPV2386148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8ae001077cc99c6011874f0fc51b0002eec9a6bf85803b0ae3392effecf3668. 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/TCJPV2386154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x765c4d14561e5e0c82a3bc366ca93f82dd451da5da0f2ae896f33855442abb4e. 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/TCJPV2386120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dd25f95e600cc37adb19fb4d369f12e47a09e72a94dae5a41c2d778b2aa9641. 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/TCJPV2386124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9b69a54e5d8acd7f9d57e9478e1c40d59815092d3a53124f33e5f3541c6804e. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T19:49:33Z), 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/TCJPV2386128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66677507b5f06ffad29ae7ed6b6773fc8099015c54c11f26f63327fbc6cff207. 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/TCJPV2386133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6a839e5a06a6d2c238ffda5efc05c02c89ecec84b4c4077ef733a6fbfa39002. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/TCJPV2386139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd95b1bc843961524d63195f05f99bc5768183c79f33efea37038d5b4a8b37937. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/TCJPV2386143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabe2fbb69998bc6c577c3a0b485b914904d732d17e1044bb5ca76e7b9db6618e. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TCJPV2386148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bcfb1ba3382a943ecea917fa888390a7ceab9c0010cc368ab6e70fe5cae6367. 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/TCJPV2386151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8ae001077cc99c6011874f0fc51b0002eec9a6bf85803b0ae3392effecf3668. 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/TCJPV2386154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa6bb428161089ce557232c8c4f27b05766896f55e3752cc0effccb3aa7ee775. 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/TCJPX2358780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fe54f10fa5ddc175ec7cccf02b8846c86fde0a5b8be7abfe4b2940c23b4d679. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/TCJPX2358781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b644438ce48a3e849699fe6a22167a5f3771a19af892dcc60045c64b1176494. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/TCJPX2358782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62ccb426ef9fe6d4a59a74dce6464df40dfa2c25dc0ce56e99b43df6b579063e. 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/TCJPX2358789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d4bd6314cd3613f9709ca88d8b8054b458455a18f13885cb271add45c42d0e4. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/TCJPX2358791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc97ad87818127982af25fac0e8805016cc0a5e0a32b62968e231dc04ec7aea3f. 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/TCJPX2358794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a83ef6a31d9a3cfd55f913f1ad4e1fbe72b7146b691727abb039959b785c631. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/TCJPX2358798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb262b43705301421c7c9b8bc390d26c1c0bac0f6bbb2f45f96d59cff4281865. 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/TCJPX2358800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01aee20d944ad60511c6b2c3731f295374bc99368bf44c850e55115b8884ef45. 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/TCJPX2358801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa6bb428161089ce557232c8c4f27b05766896f55e3752cc0effccb3aa7ee775. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/TCJPX2358780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fe54f10fa5ddc175ec7cccf02b8846c86fde0a5b8be7abfe4b2940c23b4d679. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/TCJPX2358781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0a25aaec2c90e3c4eeb8ce4994f2f643fa60c417ccc421a915177ae286b1855. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/TCJPX2358787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a83ef6a31d9a3cfd55f913f1ad4e1fbe72b7146b691727abb039959b785c631. 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/TCJPX2358798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb262b43705301421c7c9b8bc390d26c1c0bac0f6bbb2f45f96d59cff4281865. 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/TCJPX2358800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde751da8af98364db78748db577c5d85e3503e8dd95ef50eb819a773ab130852. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T10:30:56Z), 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/TCJPC2403368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02d2ce434892cc9e06534254857ce0896dd22713ece7476ae5af591bad2402de. 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/JP92Q2400649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd909bceb6ef4f299182d9bebd6a09cbdc68114cb154258f325edeead5e1fcf5. 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/TCJPB2424539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04c63ba188084fce58d10f26c1dce511bb3bed76f70e52eb8adfa72bd4e89297. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/JPU902400999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x369a199af215855f83d65f4144363b25a1bac9a1928df2ae68c446b93777de84. 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/JP92N2457954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67b3993e79684d2ccf1b0afb48a1694590084a0b0865d76733f1f9c1742acb83. 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/JP92J2401486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbed64cb1888325b14f904b7fa3bbeb07f0a204a93fa390b8f07bf756b8b6aec1. 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/JPC102400238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbed64cb1888325b14f904b7fa3bbeb07f0a204a93fa390b8f07bf756b8b6aec1. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/JPC102400238.
Forever - feat. たなか-Sasuke Haraguchi after the world ends Remix-
Forever (feat. たなか -Sasuke Haraguchi after the world ends Remix-)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c86112839e3e7b1b20a14b91975571920e45d6d08f174b63a136a590bc11942. 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/JPG102400336.