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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96055c7a40409387a1a8c0be61d8bc7f0696c8b22d3849caa820bd5e732d5117. 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/4171cb0f-be40-4552-9693-569ca70ca9c5.json and https://artists.proofprofile.net/proofs/artist/4171cb0f-be40-4552-9693-569ca70ca9c5.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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb9062a271941d3ecd04bd19324db1c8558890f992ecfe06cc82cbda72be69f1. 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/GBSMU3246513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2566643ee910bb5190d5f2ea00df27d37b077dd6a57701986f78049d1cd328ee. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/CZK801800019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcedb3f74619ed76993ec055a9b1d8ab5535ff6aa429ca0795d40af2b725a3722. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/CZK801800022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe79f74aa9771cd0fc0842bbdcd6030c7e25231bb0922d3eadc79314118dd7fa0. 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/CZUM71900011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd074e4fdfab155c7ad1d8a12c9fd2f4ded0921417d2ccf9cf0e0f7263ee8429. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/CZUM71900384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9db1ed3bd5f9a2b970eaece25601a0890ba642bc8c148cfaca7640f3cd2ae8b2. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/CZUM71900385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd82285a7b7a7c7748d098930bd38e132cde64f4d37d17a7381b079627a28d9e1. 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/CZUM72000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14a754f74f9a31c80fbc99a9e0ca1bd61bd26a0db6f4dd11f378ba8be9ebfeca. 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/CZUM72000109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1324329c2e8a647df594c63837c03d2dd3904f98e5005f1e158ee3dd06af4eda. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/CZUM72000355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59b870f92ba6fefa95af556a9d5e90e09dd3b2de4b1715c94c67cbe1f3866e50. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/CZUM72100194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59b870f92ba6fefa95af556a9d5e90e09dd3b2de4b1715c94c67cbe1f3866e50. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/CZUM72100194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe80a2232bb751a1ab58d4097e2b5e974dd0c1e64c6bc7a7ca58d5415559168d6. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/CZUM72100289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa72100745f85ea89965b25a60ac2384e7d84ac4e8df4045e003df047b80f88e7. 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/CZUM72100352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50876f00b0314c7a49c1ff26c3b156b8639ecf02371cc65d2c09014f63f22434. 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/CZUM72100738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e76ff72860822ad852872e39f7668eff84a60c37bad5ab55a1bebe03d1f5fb2. 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/CZUM72200087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc5f3e455f8ac7586b006c855ffeced3b9311fa897c7cea1b3bc4b73115abd26. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-21T22:00:50Z), 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/CZUM72200086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c30852e39ec064d8810b3eab578a5f23b2af257e1827fb3b16069a0e3e0e1c4. 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/CZUM72200094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x577f9b832062742c8a1cd867bfecfab70d5577289e713a0540bdd2ffba80fd09. Chain 2 (Bitcoin): anchored in block 959054 (2026-07-21T20:19:31Z), 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/CZUM72200887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a23fbb9a0bf1377163cc59d8bd7d0cef0edab14012ea9b50c5ca22b5bc4d334. 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/CZUM72201173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e12f95f58126514ddeabff1218c34d97261ac5c1adef215135b87a39a37596e. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T20:44:14Z), 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/CZUM72201205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x721f72b1547806ab2d3ad8474f24fe0a25fccbc23c017e7f9ca9e5e220ab4952. 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/CZUM72300366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76c3d581ac3529884a878811dc9046840cfc78482f4081ef5bdbeac040fc8305. 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/CZUM72201217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0139f05bc5c7423522f6f2a671f04253b08972652064ab7849d1800bbe180b5. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/CZUM72300165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b9fefe2646a6d17d6e9f8e9ba7662bffff1943e0233b96dcad88d9878803be5. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/CZUM72300911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd13a2033ff78b1cb68bf5bf927da215eb1fc14dbbb9994e759a659ef59a3c9d. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/CZUM72301328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22c93a3136a498473d9dbcc47dea3820384e52cf7cbce3b3f46d1b21ce35c9cb. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/CZUM72301581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8341e22a614ed467f7b03af28cb8aca17fa62bc295d2db7ded09702168447d6. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/CZUM72400259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cebc0c7ba4a000324bdb4c517bb4d4e89816405779622826d20bb6c614e6a55. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/CZUM72400258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22c93a3136a498473d9dbcc47dea3820384e52cf7cbce3b3f46d1b21ce35c9cb. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/CZUM72301581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48805ae2bca9a53bb0647496d258405b6b7996ce9f611d302ef8714b3a43c5d5. 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/CZUM72400260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01127fa68f2d30e98683a5ea0244166d36bfb76418bc26f442a525111b8c541a. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-21T22:00:50Z), 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/CZUM72400261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x466454ac5036ced8c281f5da438d960b0762ba847aebef5b48a5e4e0d43c67fc. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/CZUM72400262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x045a23e0ebb8ebacea86f0e1febc5e11cfaeb3a8670eee57c848cc777a7389fa. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/CZUM72400266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6a26dcc54863470e4433435da68df10f2b5b22e385bbf328e0caff899124e8b. 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/CZUM72400507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b79060b2d38270f3c2ab1123a53630e912a916162589941f830123485b4670e. 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/CZUM72500024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfec7c9435e5d844f7e2ffea609d65409d39d040ea2351d8484d38c2fc9cae707. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/SKA012200273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10d3fe94fba07bcc7f5cd6dfcc2465c23e909398173da815535fc8333dcbbf9d. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/CZUM72100847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bc5245a57efc475afb7201d983e6a18c3a42b52aa866b4f6c3a4d23196c9565. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/CZA162101486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x632ae32f82c4fbcb55d911bca5aa62784a46e736a06cf8984554a8c34026e97b. 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/QZN882296099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x047fff61b9c9ae642fd81c26f56870e4cc8f861063bb12ae85ff9f69f8090dd7. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/CZUM72000579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42efec07ddf930ef8b7cc006509d47d6baaefaad18ff106eebd805f823a929e6. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZHN62004143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01fa3675d88568f1906bdb96414a8164f104a33c4b1386e62cb1f92318fecb31. 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/CZUM72000299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba7b00e725a2558c8ca5e1519532831b44991600733ba42793aa0ab90653990f. 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/QZWDW2491366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4094c1532a1d14c0e79963ebbad2fde27d035f398549df965ab097d8943a44a6. 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/CZA232000207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27f5dd69ef005b4b0c1fd3ac4a2e2f2def9dfdf51663e0010063f7b435b8e372. 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/CZK801700093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf279826b620b1777eba39b4e7a1cc15768e243615c75ac1b24fd13d5388ea31b. 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/CZK801700041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b3c4775b7483db31743c85ba7e0492d7c6c2eb1f6f58ef19c8cc29c2377a9ae. 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/CZK801600088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4232bc92137b1dc936988e5278de1d133b1c49773ca9821c8348894c0d12c42d. 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/FRX282074106.