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 0x89f254f60da6a8a2c14e7f93a4352b55c8c604c6a7a12857d1d8ad3a7df4e8c3. 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/c9cddd13-ec46-4275-ad18-c0e8340d6041.json and https://artists.proofprofile.net/proofs/artist/c9cddd13-ec46-4275-ad18-c0e8340d6041.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 0xc4229e78243e9f0412cf235e370cc47777d74c5c7117089f4827f4063d982a6b. 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/NLW041400465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03ee280ea2bc5eccd0df92a504278e77bbb1239b88967514bd734b2cd34e7b34. Chain 2 (Bitcoin): anchored in block 958635 (2026-07-19T00:58:42Z), 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/NLW041400467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x345269c6ef7758f3d520acd9e710ebb9c8622df0b2abe136c8084b45523a2a32. 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/NLW041200326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x758aec8ae164c0a3988ce63218e8a58c7cfa3216de12eb4d41539d871ab1841e. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/NLW041400468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11d254ec03d8c462f6f22a5e25db374abfdaba2ef98a9f96f9af905faecb1a37. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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/NLW041500565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f7cd967d4e55ad4343cf031a6724e83c42d414bd5ee2c36ccfa4e32da3b5709. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/NLW041500569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f750d374b07dce7f973f2155ba24a02a961d31fa69f0b41e17b167455d8af55. 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/NLW041500570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ef59f2dcac1b20c322cc3497bf4bb92d8c2c0c9c56c831a4e0a3b45395949db. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/NLW041500571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57dcfeeb95f7083332744e195360c36231c19b4141e00247866ae5c09d3f6554. 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/NLW041500574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3da473433cbc4930e6d8537a6e762f2a895caf3f91487ef255713174c542b7b. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T11:19:23Z), 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/NLW041600607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4fe950c1727de529c2accd9351bb8aec8ce5c498852fb4908852db68abf7fdd. 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/NLTH61700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc07d23830cd8466ff5862457a4514510ca37f41f6d4471d7cfa091d98ee6457d. 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/NLW041900030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4da9ee2a3dd60cd048d80d6d074c29813eb638b8d2c8b3baaac263ce50176f6. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/NLW042000061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac785f3846f112c22f68cf912f360d5b2d6903dfe2965510c84df8c40be88a2a. 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/NLW042000063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ff9623e5b4c0b61719509383ba56cae8ca7415148e63ebaf4d4e14436648979. Chain 2 (Bitcoin): anchored in block 958625 (2026-07-18T23:11:57Z), 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/NLW042000069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad99fccb4a7409f6fd7be68c02792814f7f393f29107596d6e00010050cdc954. 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/NLW042000071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd302c2b5ec135ffbf7a57378a11c503af16a19e7d3a14ea15398bf73d752843. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/NLW042000072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x359f44d0e17424e5f25d1c7d9c2aa4a2c907d3dfe425c7c00461f4ca32877f7f. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/NLW042000074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x407102573f1593eb95ebaf443ac62fdfc0ac90a7189844eabe8a56fe4804f5de. 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/NLW042100210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ad7f8fa994c2fa75754c2c30952108d9af0a9708097f62b5d5e1f1d03a27fa4. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/NLW042100217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00b78c9abfe156c60b8b9070ea3ded94a79db9344e28411ac41afab87c6fba7d. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/NLW042100222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x407102573f1593eb95ebaf443ac62fdfc0ac90a7189844eabe8a56fe4804f5de. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/NLW042100210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60c110558a900b3a1abcf5a9ef0fa20d26941d0fd962155b8cb6d269a90bb8f4. 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/NLW042100221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf01df533796bd589e29b8ffeedbaee93526385139e13de4927f7485749e0f97. 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/NLW042100218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf16dcd0bdba1ced44680cb9e0428a69334475dfd475431e53740c7b0de5cfab. Chain 2 (Bitcoin): anchored in block 959018 (2026-07-21T14:12:28Z), 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/NLW042100223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63ed9bf8db6b499d37a20eda2ed0efcb734d4e43577d477d909b23ab736c9526. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/NLW042100290.
What's a Girl to Do (Rimer London Remix)
What's A Girl To Do (Housepainters Remix)
What's A Girl To Do (Identified Patient Remix)
What's a Girl to Do (Palmbomen II Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1d8783878b5e964d3ffb44579126f6ec7c58f565624d0e0e8a8485dbd7b105e. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/NLW042100282.
What's a Girl to Do (Ineffekt's Glow Mix)
Get Physical Music Presents: Brazil Gets Physical 2015 - Mixed & Compiled by Davis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x345269c6ef7758f3d520acd9e710ebb9c8622df0b2abe136c8084b45523a2a32. 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/NLW041200326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc14777f74b1a5390f3e14b9f7e0ca58f5bac4d4d0127436ba41b09de0d045bb3. 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/GBHFW2400080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3f2e7437c6f8892104b87a1918c1ab1d4ffea7ea0744a83e433938da360977b. 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/NLTH61700004.