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 0x794eddebf16826f47301b617d376f5a4bafdeab604d904b7527a59aa04870985. 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/f19e3577-d2c9-470c-83a9-93eac38cd83d.json and https://artists.proofprofile.net/proofs/artist/f19e3577-d2c9-470c-83a9-93eac38cd83d.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 0x56f82dd9ccb47d5bf07013734cd09f6700a19733b863167cd4dbd0112daeca7b. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/TCJPR2229193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x312333bd8af1245d021fa7aeed280613f2fdf501ccd61133f59bd87e0f460374. 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/TCJPS2233462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f275f9d9a1dbe26c7e91ffa2bf3a2bb439ae24a5ca36891d5ad70a026c566e9. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:05:17Z), 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/TCJPS2233464.
フェイクなリアルでリアルを夢見て堕ちる
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3aa9976867ee6a44bf13df3d522da0637e97d5fd8f1ca9fc7f70b6f8ce678a8. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/TCJPS2233467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43ef8b40ce39bcc181f600de77d370c771f3bbbbd045515008c4d88d5ca03037. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T05:09:40Z), 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/TCJPT2267895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a4cd13a12ab08acdb5c00fd3f0b0a6a68427f235148888be32ce6d2d492d56a. 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/TCJPT2267903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3680c7b6b1b17703d3f54df1083245157cb262dd0e149b548940a31ff41382dc. 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/TCJPV2395574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc73caa9be6f52ee5a0264e21c8d6e9726a57cda5c8fa7878e7f84cbe944c2824. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:19:07Z), 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/TCJPV2395581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x434308891cde4432e9778e87dabf2f5b613da99dcda452319db0433fa734c9a1. 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/TCJPY2306981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff8c2175f5dfb309847e6b32f5191b1d4064f30e2e0597bbe12bb82c48a3a6bd. 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/TCJPY2307037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x404291c8af63e2d7de758f28588952af93f5b77b24182e2d3e24d3b2982c6a04. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-17T04:19:33Z), 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/TCJPZ2413197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf44e74e1670c4ec6d6b58ce296b9623436eb3869730282f818e5856a62ded2e. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T10:54:20Z), 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/TCJPZ2413208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72b32cd4144b49b07a3e1e9059624b9100e86bfb4b8c3c8d8d0fb28c392a90ec. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/TCJPZ2487980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56bbd83376494636c836e2b5fe2f513d3bb2ec04ad6fd5121726f36da28d4a08. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-20T00:20:56Z), 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/TCJPA2489639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf49bfd5a6f194141e4422b1ca03494711490f07002895023cb64b4306ae460e7. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/TCJPC2405071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d6442b15f97fccdc920ce0e1ca2e7d1dd9f7f97eeb95f89f211f309495595a6. 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/TCJPC2405081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f80624d35a81a77ff5a48505baf380c636773801174275a9064682e894d35b4. 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/TCJPC2405088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1fbe0e411504d9a06b68508c56680b683ce682de600096496b3c2d15a1534aa. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/TCJPC2405112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43486624d440a32c038ae8e75afc0b0a83166a52afb2785cf1f88726564aa1d3. 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/TCJPC2405157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9983af41571ad31ad74abb8da74e1fb804723c0ab13d297f60577b262a0f99e9. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/TCJPD2564971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa8966922a49008e18a306b8588473c51b7b177d29ec59759cfbbcd2e6e42092. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/TCJPD2564981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8314bfc3216f8da6d695fc0bff78580d3d83372c62a773b5d71c94e245080958. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:25:35Z), 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/TCJPD2564991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31c71a2058afa3a7dfe9ae09229001c0ea33d5c15a3f8ac32f7341339f6f7d38. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:46:57Z), 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/TCJPG2519416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe44f763fe8d45bca8a37e2e68af926910a327fa24cb7cf046e6d577807cfd9a0. 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/QT66J2571236.