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 0x866c3ff962b2be314511f625311e817027a5d286dd71293f7504fbd1f8fcee65. 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/0c5fb59b-6791-489d-b819-64ab0846e1d5.json and https://artists.proofprofile.net/proofs/artist/0c5fb59b-6791-489d-b819-64ab0846e1d5.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 0xef91d4db26f57c661e2dd59047a5370fd46f6b584fd891256a0a6db94afb4f28. 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/NLD911601463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11aace9d9a32ac23461d136d8881313698144b6fd52133fe8f69df49177ea713. 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/NLD911601465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9b5497376b6190c25d5d9304e314f75e5bada2606f65b36b45b2ee08351e55b. 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/NLD911601466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcc5751ccf2a1720cd866cba92b6e6b7355c914a012253762033422fb6518cb3. Chain 2 (Bitcoin): anchored in block 957638 (2026-07-12T01:56:41Z), 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/NLD911901318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c727962a4d0cb97ff7092878fa3a423c6db4eb574d4e02b445f8c97dc8748ff. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/NLD911901319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5e8d93ecfe5204567753afd60275cd17208936c5cfbf6398faedd79f1a9626b. 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/GBKQU2347960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x846f5a4112382fee5ed4d1300ddf85b69633fd9be4b37dd0367bb944c8181ee9. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBKQU2347961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa630381683997316163e6b05f2547f8c281ab445bc44c87c5e2f2b0efac028ee. 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/GBKQU2347962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5c78eee92c4415721d37422a011efa8a7ed9c9f336b9830cb1b955a755e203f. 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/GBKQU2347963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9a821849d5ff80865b36932b6a5288dfc0ef60ccf6369f92e47b91786f60909. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBKQU2347964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x506c4abe9cc90d66b19afdd29f1adfe6ee15d49ac2fe5870d5937b6563a61341. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBKQU2347965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbac8ad29fc71e7ab7deaf4d6a9ef328fb4a83165b3b72ef63eb1abe0cb72ed15. 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/GBKQU2347966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab056203391b9e39d60c3df4b886aa7370dfd951a31bce31f898d7f7a366f84b. 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/GBKQU2347967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee98c4e68f332d995688d77a74654aa5d167d6c533ac088f8a762364affdd68a. 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/GBKQU2347968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd313a54465d059c2258219420e18b1191017f773e9a6fbbf3ebba1b18fd8a0ff. 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/QZKDK2057837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe375cdc84d51bd761edda90aaa7756b6c888dbf7e11028485f0e2312a80070e1. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/GBKQU2038921.
Parvati Records 20th Anniversary (2000-2020)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa24db898cce297b8d27ab1412bc62a7e1c43682095d981080c89578a0643fe20. 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/NLD912001341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2572c24e23470e09bdd12eb894eb22df9ee347d3e2ecc2fde527e54147e1a90b. 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/GBKQU1449661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa874280f63ea8571cf79bd31444825b7268ee9e0963dc2a600786225e4521486. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/USA2P2318150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23963746510640ebb310a8969f4219e4af18bcffc3be6bcb658c37520890bf0b. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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/USQY51566568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x076ca35a06e76ee87fd55c2e6a1cce6f7d7086854be45f612843d5aeb6e209b6. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/USA2P2208444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x229513ae47d90f5d025c234f652bd29d7cb44ce1158491c923f4fa0a2cef1c48. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/NLD911400894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48dcb2697d7ffc20b144e0f87a71071f2dc925aa9816f4badd253587eb53740f. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T13:34:27Z), 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/TCAJF2563153.