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 0x8f7491eeb6d9663746c0a005a818c6a7505670b0161c74d69bc771781bb27f2f. 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/858c6297-fd34-45fa-9fb1-8e21fba775ec.json and https://artists.proofprofile.net/proofs/artist/858c6297-fd34-45fa-9fb1-8e21fba775ec.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 0x13a8a8a61c27ab1fd995dccabae5acdb820f87f2ea0e20bdc9c18e034e05d159. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/MX2832417627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41a552ca1c3db51db8fdbab8302b4cb850da6e593fb04b4c964d882606d6bab7. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/MX2832432731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x594bb08d8d19c76e52a7d0b1dd07d644d63d9ffaf276dd67d3c8bf68134cb1d8. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/MX2832432734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0d88118f90ff1d9c1f5370411d4cf1e18c488a73515077aa40a61c93cad7194. 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/MX2832432742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe13035b60fae90f2e695304d13bfc93ffdac3f51c025c655ee1a4d0f18ce8fed. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:20:37Z), 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/MX2832432744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5ae85613cf32938347cf0c5d5cb07643ef0495e342e7ebf9c2c2231b0705678. 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/MX2832432745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6bcbdb56b9453fc0d74892888b3ceb69d47ac6639e6389f279458d43f56336c. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/MX2832432748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf71bd6521d0b388a8c1871fda7380b8e49710b7e6d9ef4fe2b76cae16a63bf26. 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/MX2832432749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98e36d5821adaee31f56835d0709d66ea364124efa79258de5133ea9abd622d9. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:48:42Z), 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/MX2832432750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c0821578a239de8b58f9fa24534dae16eedd3d67d4994793704d8a31bd38905. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:44:30Z), 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/MX2832432751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7adc2927ac1140f0da4611af98f6ab850e5288b2511217d447a36c2d10a07872. 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/MX2832432753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd215f2507e3b7516048d16fe49f50e4554ee9e348ef5a48e839e8469bf352199. 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/MX2832432754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ea8a6ac039d6a08144929905bb2e5d5595422a3dc071826dbf6cf0702736fa6. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/MX2832432756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fd52d5ff699d0090d5c46cc95f760e0098aad2e9e713775fbdc1507449877fd. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/MX2832432757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b91d608cba4f9401befcf7673590a3c0f0868eb392263d20eb26ebaf0304ff0. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:43:39Z), 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/MX2832432758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0e53d7d52d6d8bf8ffd532ff259bd50bc8a670523cd37cc29af69f18bed8ccc. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:44:35Z), 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/MX2832432759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ff182fa1639fb9e66de3bd364bb42f6943f738376ab2b0f8c87a40aa111e5ad. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/MX2832432760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ece2ad9d802612366bcc07d2f8039305b926474f2e3444f4030f6526f615bc7. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/MX2832432761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08d779338659d7a46290c4a7b47d4febd9bfeaed03de574650e06daa4162a4ba. 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/MX2832432773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25160e237bc95412cf353c480ef1e490efe1867dca4694c8f06b10b94eb59652. Chain 2 (Bitcoin): anchored in block 957772 (2026-07-12T23:31:17Z), 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/MX2832432774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd383cf4dee5de08d95778ec89e9df3dde85d3fd0438e467078464c1cc2173412. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/MX2832432775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2c6117fa51bc42398857ce8b6ddd947b264859d37c7cd892e54ac1e41231db6. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/MX2832509483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a5bed8c4a043b936b0f799a1d6dd44fa86c5995d381ff7b72310a2ac03a61ab. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/MX2832509484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f7af714b1b3cb6677b3c919f9495db8355b9bc69fddc5597fe52f37141441c6. 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/MX2832509485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba4dce09811934d5482ca98cf2dbf27e51ac5098f19ccbca254065ec51ad8515. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/MX2832509486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x848a45c09555b2644a7ca75c87520b27b700281669d4fe4651fd347a821746d7. 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/MX2832509487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8523afadca5ab5fe23afda9a30a4f716a650a84828dacbbc04ee6952f0a84f6a. 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/MX2832509488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26b4a9de0cb479d26f5f654edbfdd65f8041cd22580fff745fad1a59496d67f2. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:41:20Z), 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/MX2832509489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90bc0201689da3642b1fe6536e0b6cb2d5e3166e8fcaf46598e78e4e3e8eb3dd. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/MX2832509490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8480ea520e218310f5602a15c5918f50e1138cb9387e7a9d7b957de4a6edadae. 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/MX2832509491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73646706a87ea599d7c4e1ea186f6aaa538a2955f928330352306a7e7407bcc5. 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/MX2832509492.
La Herejía de Horus (El Fin y la Muerte)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74789a97a508e31da65f132622d539d596e348e46d7bae69b75b57efb41c8407. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:26:41Z), 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/MX2832509493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x412d717c32b54872483f9070567d32ebb6fb75f5dc786306163a69417afa5382. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/MX2832509494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xada8a674149e429cbf6d17234b59e03e2e413b00b645137554baa515fb21e8bd. 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/MX2832509495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23e7c6ade91b4e890e1522fd6fe634c4580041f3df93d23cda64746c04a2ef3f. 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/MX2832509496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d4faf1a91334531656ca147290aa7b12612f977acd7cac0e5e4309cc0a21b2d. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/MX2832509500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcf5004a19f0a6556ac01058ba776d2137e6d7174f83532425ece92f07d98466. 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/MX2832583037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bef2b448429b66b6062d1a77a2a48a5ca3f7d748549e4c1e3d1d032e764d457. Chain 2 (Bitcoin): anchored in block 958828 (2026-07-20T07:56:21Z), 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/MX2832583039.