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 0x964eefb95e2d534c50ab33509ddf68be8ca54b8856ef70f97d1eeac4f026a4f3. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/87e9d7d3-0a2d-49e9-80d0-b10ec4f1da39.json and https://artists.proofprofile.net/proofs/artist/87e9d7d3-0a2d-49e9-80d0-b10ec4f1da39.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 0xc2b3582c7926b046a215fb673357b5df33d417144ae4fd78da38ace7f097773d. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/ITB002000359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba910906a966012f5a2470a6c4dcaf47fb51f72ec6c3118fffdb66fdfbc2b478. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ITB002000620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3354051edcfe6f205611c6026d6553abd54e5e54fe2794436426b8110fc0110. 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/ITB002100284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ed29a45524987ff2a256f1640060923ef9831bea03e1a8ebd9a83c417dc9eec. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T17:52:28Z), 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/ITB002100285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cdc612d44a137fd2d0998e9f498c115569926d11b8a9079e86b57645ebd4e3f. 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/ITB002100287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f997f016437e78759cec7d1af9cf0f34a079fffdc9a6bf292e1e45562fe9579. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ITB002100288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3234fbdc7e48cb8b4416e2ab7cfcd2476edc2157ef58becae9135e3e9b0341ff. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/ITB002100289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba910906a966012f5a2470a6c4dcaf47fb51f72ec6c3118fffdb66fdfbc2b478. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/ITB002000620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7595dfed646e31acff8f4580d344c72c4c2df62b75084bb76246fd9762c53f83. 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/ITB002101222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22682a096c07f6dd8ee67787db616c0b5d0d6db7e141e1f99750994eb5b078e2. 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/ITB002200458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7054dc75e68b0023ad5b7e3bf710ea483a9075f7a7198de07928afedacc1b40. 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/ITB002200460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ed7b503ce4975308c48c49952415f468a3eff8764fc95349f4cc866cd210a04. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/ITB002200461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d6d4077770695e2530df716758b4764ae50ef1c2108750d37b7499e0cd2e1fc. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T14:41:36Z), 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/ITB002300730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0b8dc2e9f0fa4b7082c6b7f9f94cdbfe94d6e2a5a1e76662efa512bd6e0349a. 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/ITB002301093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x618121af3040aa6b172b3a28e20a0753040f306a66110b7baa20287c3834baaa. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/ITB002301697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c4383fa5da19553e8f3157af47768945e82b421807d237af5d4df99f68f857e. 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/ITB002401171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x086531fe4faf74ac79edfa05b073ea3b868db98a64902451e02939cd2e07d2cc. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/ITB002401174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd036964c6aa5b7abdc0534902bb6f43f24516080caece674ad24a41f035e853e. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/ITB002401173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x372731a9ea0773f5a6237f8db7c1b3a865e03f648b12f43fddc9ce975cc4cfa5. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/ITB002401176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6e63213d1bb68f9646b2b6abba550cf4d8e67284c6f60e803c3a9d5cbb3a7f0. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ITB002401175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4a77c3431c1421c23c839b068a8ed1f0153457f55e8248d2c4db33b87f0435a. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:08:14Z), 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/ITDIP2500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa69f0041adeebceb3815823447825ff786edc8721564bab8507f971ad05bea5e. 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/IT1O72100748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32bd96c929e97efac27b3c3e542a67f2bd6f9fb976c59f8f767b2afd2ea3ccd5. 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/ITR0H2100045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x014dcfe8bf7ce48a9a44e1a2e303fe72e36bbfa7d52b617ec8908a85080534b3. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FRX452283318.
Il Seme Del Male RMX (feat. Not Good & Inamos)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1329868cb244eb8d23a354d2f9fa10bc7bdd11e9721867bf89676af83c411920. 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/ITB002000701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2c22f4aea29d162916d78d1569f932e42af9d82df668a0c2ca5bdc5f89c562f. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/QM7282410303.
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