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 0x989baea6ffd4bac3c8ead9c4a805d096c08a853db83f2c7f74cede4f7af5757e. 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/8234aace-18a4-43ab-9490-964950c005bb.json and https://artists.proofprofile.net/proofs/artist/8234aace-18a4-43ab-9490-964950c005bb.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 0xdce8e4c79e593ac8bf5d0d34100cdedbe36591e76caf143292c46ef2d12376a0. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ES5022101037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x002d907d3049ee2224dd0db406fc5e4f3ba4b350f5cbece9b336d2ec187845a3. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ES71G2243319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4573aac36d1a6fe2b916be01f46812a3fd4bb5b3d2fcfa75445204af36c30e4f. 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/QM3DF2431883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb186eb2c1500147c551771301263c19258f7ae286e709deaf176c50e4dbedd13. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ES71G2414922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8854c2bcd0fe412c3865e8869ad38925a29882b320159b6559ca5183191f95be. 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/QMANG2401503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x270eaf95fc019f00e3ac7d06595241ea614fcb7883c522a8302c14c254d37902. 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/ES71G2414924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c457a33ecf6c09b7d92d135da9f8f23f4100669d55ea66741bdd1eef0814128. 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/QMANG2420756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16c4126b4caf6c36c83a2ff6f27717f53d2e466b88dfca3033351c9905b8de8a. 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/ES71G2414926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb166c9c647cb2ce8c54fd3db055fd257e8296b908cd59662cb96a7937c7fe80. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ES71G2414927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05458992976e21607756b7bb3e819d13931b3919fef6e264344dc821572e2b90. 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/ES71G2414928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x851e64fc1d87de0fc7a7fbd87b5f9c40e9d7c45e6884e4e024c4fb4d34847ffd. 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/QM3DF2483415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8854c2bcd0fe412c3865e8869ad38925a29882b320159b6559ca5183191f95be. 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/QMANG2401503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e689b39bd76cb2311b01475034e83b3d6b02d26bf34891331f9f87ba0a839c2. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ZZOPM2221741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87058dcd1f6124b53bdc0fc46974cc30798492233638a4f325734986843b918d. 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/QM4TW2151960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d7649a6921d09c8427b3109e64d6f7c32c69e686765014f90962efed6fe00a5. 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/QM4TX2177708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25a3197027b625515e0da88eddeec153f24cd81e89e5f0bbee877dc48474ffd5. 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/QMFME2087139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3799276f2dca2d396afe8c7c0bf2ad74013b4040c82e144bcff0e24763c129e4. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZK6F2044892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9862febc5ce02c9b54373880a68c05e322e08e5101dd5a15f15ff1fae482848. 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/QZK6K2017860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10c6df560ea77c6fea32bee9031158ed5bc501ba2d5aecbc08bd6b3b0f1eb716. 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/ZZOPM2226486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e7fa2a7f0d895587c85a67a4dcc0d291e48084b2663f98e491704b4d05e9bd1. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/ITQ002100379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec74ddd3210781dd99d508552a5aac784856a29a3799f22239f723cbe516cb54. 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/ZZOPM2228976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67177334e933eccac92c164f03cdda3a9ca5d0fb7b3387a3a1313464a024b35d. 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/ZZOPM2228978.
NUN O SAJE (feat. Random, Peppe Soks, O'Tsunami)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa04bb980f6736d6cca2370344712076f7423f7fece38fe7976b3959568db22cd. 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/ITVU12500024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9220f97690edc399b2c703bc50a22595754e0c8978f0c3d42dd8e262210c398. 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/ITVU12500025.
INIESTA (feat. kiddkasal, Korbe, BigMadWolf)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89641b8df1f25e185777ba0e134914a68db67c7e6da273a774e91d47e96c45be. 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/ITVU12500026.
SANGUINACCIO (feat. AJAJ, Young Hash, Im Envy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d71f9edfd11f18265813d3b12089e974cfe7af23d254da46c805ae8eaebd30a. 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/ITVU12500027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eb3c548fdd7039b88a2dcc9c24618d2e69310b13e7ef1818800f33f00872fea. 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/ITVU12500030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d2351019500700ad71fb703892b9b1346e903e1480a8d4d0709663ea33ea2a3. 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/ITVU12500032.
SUD MOST WANTED (feat. Peppe Soks, Lil Parta, SKT, Enzo Benz, Welo, Kid Lost, O'Tsunami)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b520af000daba3428b7c27898257047ead5954c2a7836f86aa02edaf7976d4c. 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/ITVU12500003.