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 0x2da7e2a8c11436ef9662876877f517e4ff8a8df450f51badedd4ba28b9968fa6. 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/e0affc46-ddef-4e4b-b361-926884503e14.json and https://artists.proofprofile.net/proofs/artist/e0affc46-ddef-4e4b-b361-926884503e14.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 0x0be75969f962c6bd73103039c31ce1f6802d7e4082ae6f701ed23ab22ebfa56e. 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/NLD911500013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd17823f0a83b9b8e7fa2110f2c945a887f7b8d2471701e6cb2117addd291f69. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:20:16Z), 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/NLD911500014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b1bbfcbcea9ff6c690b954f8ae73f2ae89b637667bbb45bfc1e4c05935d7311. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/NLD911500016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdcd4ecdfa27f69e1d39c1f9ea399d3bfdbf96d82a5fbdc5a105d407cdfa8e06. Chain 2 (Bitcoin): anchored in block 957603 (2026-07-11T20:26:17Z), 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/GBKQU2149150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ff0bac9b9029bb2026804faed7e68f3b7d0a7e1414395a213d372188d36158b. 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/GBKQU2149151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4fd8e53a16a3d738cc0efaba8475ca764744020519abc07c1fc4ad6dcf7840b. 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/GBKQU2285992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a8f4ec437e308561a152975759b27fd498cd3bdaf12addec9b76aeb127da588. 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/GBKQU2285993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89744b84064e149d1c9d1cd67922b2a291a81ddc51003f2f96031c3315de0ef3. 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/GBKQU2285994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x654f00a8e7f378e1480d5c0564affc63c989de57d7ba9f695416478c714e6942. 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/NLD911400816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbad09dfa491c73469604e59a4ec83d9810a2cc2d5cf1e74fd60144d5a5fc286a. 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/CA5KR1829896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dff1b253268fa7ede8c4e9e4b90bc468bb973c4068ffd0e15f8958f2191aa9d. 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/GBKQU2194269.
Bubble Universe (Compiled by Emiel & Giuseppe)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x639c15a7fe3005884f46b7f224f3a786270483b935da3d6485c94339086205da. 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/DKL9A1900001.
Parvati Records 20th Anniversary (2000-2020)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ebd324831b7d2fab47fbf2945d9aabc1dbbbb44a49be41ccab272815d9af611. 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/NLD912001343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd62cc290ce4655225a683a29ba79e89db2fbd0f83ae48f74c34be8501bdd3981. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/NLD911302020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdac737a5ecdb9cf908b71242106ea209f3e746acd6fe43634599b489086d5850. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLD911800139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75619d992f77d5c8db7e25305f4db5a142734df897ed1cf7437df20cd2dc22b1. Chain 2 (Bitcoin): anchored in block 960419 (2026-07-31T15:20:33Z), 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/GBKQU2140536.
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
Parvati Records & Modem Festival Present: Parvati 15th Anniversary Celebration
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x391d6c4f663771a83694ba06a1f54e8cfdeae0cdd377e4223827e2abb0284558. 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/NLD911500031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfed4c0b1bd26e7b423875bc5339c0656819d0603367096a8ae1bb3badefddd65. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/NLD911902146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafb72de0f16c066d723c47a5eb92fde7a96a9617ba1c25d5fc44f3c5a58f334e. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/NLD911600826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b95a1b6d9da4cd6894ad2c08fe917ad6addf461e826ce315a8115ee938f8e88. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/GBKQU2456900.