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 0x84da54c492d49139c7597d7ac405007e0d3826eef84bbeba05eedf84eda75871. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/253f165a-6fa7-4f82-9e90-4f0cfaaa08e1.json and https://artists.proofprofile.net/proofs/artist/253f165a-6fa7-4f82-9e90-4f0cfaaa08e1.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 0xc627359c36728bd9c46eacae7355066c5330830b98b9f9f79fd3cb3e1a87b20f. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ES71G2209316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf459cab52e69cb00ee8a391657bdc460335224a1a9275573e2719edb97fc04ea. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ES71G2210693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2865f3ab220dec385ec0356a00bd029e0f82f54c70a84c3a9e6ddba76231104e. 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/ES71G2210696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce767f7d76fadf820cb14942ec34134730910d83fd00b3246658aadca83e30a1. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ES71G2400358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb354206eabce5fba75e45e7e841393310e772ea699945b0e37605ba224a7c3a0. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/ES71G2339255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb354206eabce5fba75e45e7e841393310e772ea699945b0e37605ba224a7c3a0. 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/ES71G2339255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc627359c36728bd9c46eacae7355066c5330830b98b9f9f79fd3cb3e1a87b20f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ES71G2209316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60ab6b71013197f60f95f87dcf5522f86ed4f653018852394bd775e1a68479e5. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ES71G2145561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02e1d06515ef83d8d084d4a6d74c15b68d164ee8bcac57bb59e4b61fa0f81d53. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/ES71G2106761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f9e4cd2a6e66e734f2f0d018cd27407236d77d5a47ad54fd38ea527c6a6579c. 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/ES71G2101470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9188b6ce135f5f8b507c043efe2ffaba9bcf2330e88f34b88915a0f47011fc64. 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/USL4Q1969164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c8e83abe855b019ccf458f171deecd8961722fda5d9fa113ab4fe95044de40d. 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/ES71G2406764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x176201bec6ff89e64539ee9e4394a0b276b9e46a7042c0403372a6e641ee6c5c. 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/ES71G2400315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf336aa184faa2dd2ad17a4db4e26eca8f9cfb921d69ecf3f4b2168f4fdd22fb7. 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/ES71G2406762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x920318aab078800ba38066f1eef00f22f41ba3599c7f1a59538799d71ca466f8. 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/ES71G2406765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e644a701f20a9e3f76993b7477b85e0292b58311dee1126a55938c13e4b3cc5. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ES71G2337007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80d3918914c15e414006b196f4ab3e3a7fe70d86301000b75c32f9ee5f2675e8. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/ES79A1913701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x286398c3a9a8ccd27043c905fc43db6a4a7b0fb23f64b39c0c40341603b7b323. 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/ES79A1913702.
Tierras de Aquí, Tierras de Allí - Sesión en Tuetano Estudio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48ebee96d2b1c2c99f977e8e0b93c1eb36fee290978e5a50a9b1f8adc0da3356. 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/ES79A1812713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20c6d2f34ddd216683037ce2fa5dd02e2250534fef86bf3f81c80a3e32b6e8d3. 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/ES79A1913704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f8c9d692580846e18d3d0d5bbb6668c5b283ec1569c58d61bc1c80d5d256d26. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ES79A1913705.
Luz de Mañana - Sesión en Tuétano Estudio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37f255a9076f4e852ea34dcd51acbc3e8eca983d50eb42cdf8db00a6b098e35e. 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/ES79A1913706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f236e4ecdbe978b55a768382ffd26535c99cd5e97fefa91989ffbeefd14f190. Chain 2 (Bitcoin): anchored in block 956861 (2026-07-06T01:57:57Z), 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/ES79A1913707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf47ace8d98643d4ffa02fe4697d3386ad11f6044d26be6fceda09533457f162. 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/USA2P2470168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaf5f0cd36ab84ebc2db83fe56c1d3b497269eab027469903641d45d0fbba143. 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/USA2P2440364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7852443dce35685c81eb88fdd6a22c3057e85737a12e8d494372f3d777a5313. 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/USA2P2451373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70cd2df83e969b789c3388086e3ecd571776620a402541c0b5dcce744e2b6277. 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/USA2P2470169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0df668fa281da75c0e502edf33bc642f23ea24e327df854cc050b292c3c813f0. 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/USA2P2470170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x016bc48377e6fdbf1a49fef4f6cd77fc9d06c76cd10117b8f7b3f4854f3f2643. 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/USA2P2466527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79bf2224f680e30d8b0643da872a987d8fd5dd6d11ef1647858a7b7429365fb8. 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/USA2P2435292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a924efa45f9303667adc980c2569b4b2b6fac039f5b2beeeb419e55ecba7764. 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/USA2P2470171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0fd145a140b08ec943f2a9e36e898a8b44708b8d755f3f5a46f651fc86b7de4. 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/USA2P2458986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccc704cb915762e8f238db75a7e6a55101165573b67c629dbe6da6df7e480eb9. 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/USA2P2470172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a41b6fc3d5f0aad8bbd22875f719f95cd6dc6ea88938da28163f36928868bdd. 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/USA2P2461554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe78c88843beb733a5aad29eb563e7eaa89b11b2304adcdde1282071936e8e9c. 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/ES73S2100163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1ebd40cfb326cc5a575bebf3849ec9e3978abab0cbc0fdd0afff5622fa00082. 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/ES73S2100166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58ff4ed1191a4c7f606d4283f6627c47b4c69fdfb48e8559e1d2b42b6ced8e50. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/ES73S2100169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f9745da60645c17be5ca46640374c442608f036c13e417a58b0970eb4a82089. 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/ESA092410091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5be68ff99777bb986b989d99ec9a2ea8c85eec1b955ffaa479a581d2d6f4f9e7. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZNJW2406848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4a35b4d331e135593a80b1fc0c85e149e8a42ecd43b3e87119f7d94285626ef. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ESA011992231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffba161b6c94c9c8ee709863f6b9c2a9575702c224c5e1eb7f417e7d89543b59. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ES64E2471958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x423905278ebcfa629757422ffb991a95de89426965dd23e19713fb7f79ff21a9. 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/ESA011544532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x838b7813ba4263fab834a0e81590ad5f70e964a81ab6dc3810e6bad7c28f6a39. 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/GBMJG2005810.