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 0x70db74ee2eda49c28c6344286f2afc00496a6e1373f890449663a25ed541f249. 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/ddef071a-69fa-4464-8608-95d27bfe16bb.json and https://artists.proofprofile.net/proofs/artist/ddef071a-69fa-4464-8608-95d27bfe16bb.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 0xcbb707947ecbd8aaeae1b5c24466b1559d83edb5b4ca07d27a10970b115f8eff. 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/USA370580224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b4a679e1071178230bac5cca700cfce82dc1d1814a3742d1f7380d5907e2362. 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/USA370580229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea3e2fcafa606a0eea180bb7dd4ea178c92cbbc9fbd91db70e7d9bf8867bb215. 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/USA370580235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe369622db0544a792e0a5221106fd8dc3ae123983b7e05e00d2f4a81f12bd5c8. 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/QMFME1497604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21bc9c042f89e644c163911e9285bd4c5eba23fdaba91aab39f19e17fe1b1029. 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/QMFME1497606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0b58d73e02246fbf04103eb0f8fef201bae361d0c309a8def21e7feef19bbe5. 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/QMFME1497607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d09f78823c603578abe675770a1237a01a5ee79d1ab474574d45f99a367f014. 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/QMFME1497608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2986ae0ca179cc4a4d2518c64290a0ac7eccb2d6c0ac87309a4dc77e409290b. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/QMFME1497600.
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 0x2b5ca98d53ffe7fa8aafd18cfc820458393d292cd569e2447ea4cf3a710086df. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QMFME1497601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58384faf330122b23d80559b5864242fb826410b74ba39e400fb67e23eb3f426. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/QMFME1497602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x706f770d8aa153f1bbbf2ffdd16b1cfa78293a79aac57cccf1a4429c48c441fa. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/QMFME1497603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e390fb2f0a32c22708249691a253209f97712d5355ab9825391b659c46867a7. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/QMFME1497605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0d031aafe31e97dbc760e16cd075282fc0c18b62ed54e2dcee18d13a6d1c8c8. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/QMFME1497609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6f7736b0561c499f096307cebef560305559c761c1cb63407cf0d6741c3bd82. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/QMFME1497611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x060ac6d0eae7e29783a75988ad00c48ad5d2b02a8c14fc3feec9bcb0d9e459ea. Chain 2 (Bitcoin): anchored in block 960407 (2026-07-31T13:26:30Z), 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/QMFME1497613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x425ae6bc53c9a001acd6f6a471708377e6d9c4e4099d7229c6e5cb578275581b. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/QMFME1497614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bf90a91acc95102123f2835cd3a17e52ac0239b8c18e06dc2bbb84b15f7ddf3. 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/QM4TX1552949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe922f3048e8990f571c8f8563e7572075a7b1aa40319b27ee84a02958633677e. 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/QM4TX1552950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c89e58479fb8a8ae7ca0153cbd922c77a256b301616e6977576c4a398c706cc. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:20:55Z), 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/QM4TX1552951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9736029f61e7a4cb77ddafe02e1ecce6aeff3c40382161683f38b5a11ed1e208. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:26:57Z), 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/QM4TX1552955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x398aeb94c4f631d96f3a42c3065a14705860cba0533c1fbadd6e2fd75a87233a. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T13:00:11Z), 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/QM4TX1552973.
Pretalkohola dziesma 2023 (Mart Inc. Remixes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dfcbaa35d61e8020480cf9477aeacbb66552e789b87a4acc933ba58f3e7b087. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QM4TW1582121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecacbe6645e324c8b4c6c27a91472c3176fe2225d5fba800fb02f1c4f1f57039. 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/LVA051000045.
Sanāciet, sadziediet...Dziesmas ar Jāņa Petera dzeju.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f65cde47a43558ff94fd4eb058c2c5d5e39b2e4ecfc21ce9889540ee141c44a. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QMFME1470991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3bf52ab7900311c1642f8a6e8b8c6f57654b184c08f0fa6c7e631155bc2a19a. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QMFME1470992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x713e53dff3b0009cce8837b560dbf97d13497c0de3566f3e06c0fe286d9dd848. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QMFME1470994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ef08859f93cf9518e29a6086b96d789574e83b1094cd90fba2583ebb0416078. 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/QMFME1470997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fbfd529fa0fd2e5657f74a2adafb7603bd3b89bb6d05357a6bc382298157fee. 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/QMFME1470999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6869ef221452ca6a7f8bee48cfaa48d8f64a7789bff2946a5403aa509080a0d0. 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/QMFME1471000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ac7b29818cbbacbbf7c2f29c5b392136d8178230335a17834efe7fbb027511e. 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/QMFME1471001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6825e9e8073804a6c568615afae731ec9a199300a031b3d69fbe1ebf4c6a2e6e. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:04:45Z), 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/QMFME1470998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cb9d71f6ebb9ac449d63837e65e96bd63927d147372810fd206469733527754. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/QM6MZ1453209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23946da595a6edd593d6b529faf249cf4a365ac4d9a3f0f1169d0b5f39ace94e. Chain 2 (Bitcoin): anchored in block 960277 (2026-07-30T16:10:47Z), 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/QMFMF1403851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c076bbe1f0f0270c8435293cb1724ab663bb5263901c90f35f63a00b1c1e796. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/USV351483507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x852652664333be89b994c1b818ed67e68e0152d122b751a1ab2f12c388cbfb9c. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/LVA109600099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a3be089b33f25235456089daee8ebf3f53b03d0739e286dd585e79a42588f31. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/LVA109600114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x804cea1f5e53e0d0d688b4d4bd2cb98c90718305d5123c09adc6d96e1ffc935a. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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/QMFME1470990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22a2abf2c9d3df2fa150f081c076745b4440eb8e394c782c739e1b9b4a72e72f. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/QMFME1470993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c0ea7b975895ee4bd30dc12713ab30854d1f4e17d74510e1ba4557f4f3fd9be. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/QMFME1470995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3d96b4cacf4ce7168308dd0ee5dd995aaa2732aad290b8db1b793aabb30c8b2. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/QMFME1470996.