thumb|upright|Amaterasu, one of the central kami in the Shinto faith are the deities, divinities, spirits, mythological, spiritual, or natural phenomena that are venerated in the traditional Shinto
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 0xded3ed676ae5250c1afbbea32c11318ab1367e0938a79507707035234d9e2e97. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ac898193-9a5c-4f4d-889e-42c72488af48.json and https://artists.proofprofile.net/proofs/artist/ac898193-9a5c-4f4d-889e-42c72488af48.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 0xd055dd03899cb9658ef15f2fef2e9ac9228c47d32ba1953631cfe2714101329d. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:41:54Z), 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/QZDA81918906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40c0b2a8b9972c1e91aa6a6b65165b3c04f4a01dd022c618c4ce261a78e1a9fd. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/CA5KR2139785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68d63cec307a856c36c4dbb422864439cecd36cfa9267ce10fce4228c762d289. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZNWT2382524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44c57a1ab20647c71d96220bf218b8de219a968282ae677cdb51e73ff3ab9a78. 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/BEB682300447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8233b62ad19947e2004b5d4664c3271b0a14ab1d484f1714f2bdd960116a3c50. 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/QZTB32349325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86988e8406843827bac6a6ec041da6eb58c3940ed6e4d68e2b3d4a6100cbf3e7. 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/BEB682300659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07128524151fcdd2fd333f738b785eebc6c817aedf634c91b6436253cfef4da0. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZDA62419020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ff49cfb18563188c1fe1b6265f363ed2e79b23e6e0ec56d788e2738e0a2b5c6. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:34:23Z), 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/QZDA62419021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7381a80325b7e798633c64726581134224ec4a296031f6a7d9e8cfe0741ba179. 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/GBKQU2456217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c2f5cca4506c7853ea217797b4a23f977739399fda65e8b53b459b2d1e165eb. 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/GBKQU2463158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0159034a4b1e09fad9203cb1ff1cad8bf61d01a81c8f7bafe2148b9ecea79aa. 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/GBKQU2487199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7381a80325b7e798633c64726581134224ec4a296031f6a7d9e8cfe0741ba179. 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/GBKQU2456217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe35b9e5c13248b9c1b22e9063ab5e2164c846d14548673a0c820af03923fc8d5. 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/GBKQU2538075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6fbb2731b72a56cc595b9c4979a4549f1fb05ffe144de5f0404ba0ac2983113. 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/GBKQU2395847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cecf03bec660cd104d4135fcfb7bc17ae0b80e8e763b952b4f69e27ac29186f. 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/GBKQU2219922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0ba6b6b42abd8a152ef7e8bc52c050a2aaf54cf26a4c1f2aa84c97cd05b9c36. 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/QZK6M2341673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefbd555ac397e93473fd7c28b48a1131ccd5d5073d519bdb529d07afd8ecef76. 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/QZHNB2203814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97d5ba29b79c535b7d76ad24eb6bed8bdf68a0882d40085d7f0308b657c03010. 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/CA5KR2320846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x245c0f262a6444369fa1a14c7e278071c89bae5fb6013c859ef3300e3e222f59. 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/CA5KR2271787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7ad291d87f08f98863c1f5446111926d28ea5120292656f1040ec6b36585828. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/GBKQU2181045.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch