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 0x1cc757fe0457407982c25ec6de59bc9676c9db0cd3f2942e26dbedc35a6262d3. 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/9812cd58-cdb6-48a7-b000-669f3e2d49c8.json and https://artists.proofprofile.net/proofs/artist/9812cd58-cdb6-48a7-b000-669f3e2d49c8.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 0x17b0c6676e69bc027f06bb64545baad15e0dbcfc1540fb6d80e1b7c809e3f6eb. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/JPPC02310013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3896105e1709bc5353c7a00c1170b04e2dc008333a44c95295273178de5545c3. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/JPPC02310093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf1d05eaee4fce4d4077ae6e580c27c4455e0059fc7acf575a0d182a44f34996. 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/JPPC02310766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf1d05eaee4fce4d4077ae6e580c27c4455e0059fc7acf575a0d182a44f34996. 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/JPPC02310766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84a3a85bf43637406978104def5038491f172195de26e1d216f25be7f462db39. 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/JPPC02311008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84a3a85bf43637406978104def5038491f172195de26e1d216f25be7f462db39. 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/JPPC02311008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38a145b4f753b071bf5e996ac5c3bf8487c723eea62e0e02dcdd0ef6f97c1513. 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/JPPC02410080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7daa856846baebdfc69997b612004e33896697fe30abe2f35ac88db2f6cce35b. 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/JPPC02410081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bc61f3a9c54a670f01e6a21028004e7c8919a25330a00b3f96bb6eb0529581b. 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/JPPC02410927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bc61f3a9c54a670f01e6a21028004e7c8919a25330a00b3f96bb6eb0529581b. 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/JPPC02410927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafc8bab4b8d0994c7fb21939f160c5aeac86c341fd72793695304eccb452fbb8. 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/JPPC02410928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2784bb615cb3f8dd6692621b8a2f0a93c22677ae97e6ac4bb7a85b77070eace5. 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/JPPC02411505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf8dd845a4909ee278aa9e7f168bb987ef7129c26efedae600ee8fee3fab8ba8. 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/JPPC02412718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0da2a994dc6e4532b0bacdf60797004e121669cb1c92e80ddad2f19d412735f. 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/JPPC02412719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf8dd845a4909ee278aa9e7f168bb987ef7129c26efedae600ee8fee3fab8ba8. 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/JPPC02412718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3896105e1709bc5353c7a00c1170b04e2dc008333a44c95295273178de5545c3. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/JPPC02310093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84a3a85bf43637406978104def5038491f172195de26e1d216f25be7f462db39. 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/JPPC02311008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb83977e8c530bfcc5deb93f60534b37ddb1950fbcff393e64c993838396a8672. 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/JPPC02311665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38a145b4f753b071bf5e996ac5c3bf8487c723eea62e0e02dcdd0ef6f97c1513. 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/JPPC02410080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bc61f3a9c54a670f01e6a21028004e7c8919a25330a00b3f96bb6eb0529581b. 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/JPPC02410927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43fc3887a991e2b79d798a17a62814dfcdc8b52644f6247035424e116f36af67. 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/JPPC02412015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccfc76936c231e94bfe4ee47daca868e43a7ccb11fd2ff8789d195cd747814b9. 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/JPPC02310011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3896105e1709bc5353c7a00c1170b04e2dc008333a44c95295273178de5545c3. 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/JPPC02310093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf1d05eaee4fce4d4077ae6e580c27c4455e0059fc7acf575a0d182a44f34996. 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/JPPC02310766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84a3a85bf43637406978104def5038491f172195de26e1d216f25be7f462db39. 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/JPPC02311008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb83977e8c530bfcc5deb93f60534b37ddb1950fbcff393e64c993838396a8672. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/JPPC02311665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3159e5edd08b4c2ced5d3d4175e2538c0a450f002ab8dba9ce2979e1d504ef9. 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/JPPC02410075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bc61f3a9c54a670f01e6a21028004e7c8919a25330a00b3f96bb6eb0529581b. 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/JPPC02410927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43fc3887a991e2b79d798a17a62814dfcdc8b52644f6247035424e116f36af67. 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/JPPC02412015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf8dd845a4909ee278aa9e7f168bb987ef7129c26efedae600ee8fee3fab8ba8. 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/JPPC02412718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3714ef3f4a4e6e9c76ae5820f117ceead2bad06ca46ab6f901739aebc4899503. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:56:23Z), 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/JPPC02414031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3714ef3f4a4e6e9c76ae5820f117ceead2bad06ca46ab6f901739aebc4899503. 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/JPPC02414031.
Things You Don't Know Yet - TV size ver.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd082321f180b135515f591bafdc4907b0c261654479a6c631e343b6981a7cd4b. 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/JPPC02510754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1d9c5f24ac8ac2332099dbd68336da1ccbbede9d14adb9c8fd5384522a50766. 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/JPPC02510750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f9d5da52ca98cba23dae2e82e6fb1827070411fca517bcf0f54524eca6d246b. Chain 2 (Bitcoin): anchored in block 958625 (2026-07-18T23:11:57Z), 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/JPPC02510748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63e33267797971b73a8ab335e474b1219f7e63c36cdb197da37c04a7ec556499. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T17:31:29Z), 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/JPPC02510491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63e33267797971b73a8ab335e474b1219f7e63c36cdb197da37c04a7ec556499. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/JPPC02510491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x354e1dd766b917e6bfa7e7668986127ebe86089f2b4d86afa4d143346926d5d2. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/JPPC02511036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28da447eededb9289bed7e4bc0870ad7d6cc37a750ebae8395857c0505958f4f. 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/JPPC02512352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28da447eededb9289bed7e4bc0870ad7d6cc37a750ebae8395857c0505958f4f. 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/JPPC02512352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0df16d02a041004fe87fc79f1a120202782c8c6f6bc2ca427967830f25251409. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:50:48Z), 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/JPPC02512559.