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 0xbc4e8ec016f25029bd3fa9213ac3caa3cd77aac847d0af7c0dc1a88fcb5293cb. 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/94f8fdae-8cae-4d12-815c-ab3ccc95b4c2.json and https://artists.proofprofile.net/proofs/artist/94f8fdae-8cae-4d12-815c-ab3ccc95b4c2.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 0xd60538da17bcbd3ff4598e58a57c23f676f69c72af643227c580fd8980d612a1. 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/SE3GO2312301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe351be43aedd1c611aa37adc4ed1d4e601f5065a455dcdfd03f458de2817943f. 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/SE3GO2312302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62ffd72b277c1c92719e48729d89e78cf22cee0a00eb5bcfb24f2676bb9f34be. 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/SE3GO2308101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9913fe8c42af2aefd728f510c3336c282801eb3f94efa88978ea71787a3d43c5. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/SE3GO2402001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4e168036bebb1c089aef8ede3fd8de5e14038eaad8eb3b644ae7fc6ff9a7cf7. 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/SE3GO2213401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x197fd624b92f7fd92cce9fa9e5c9b96a17e3816c20720af9a601b369455646fc. 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/FR2X42548373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7c6e032d432dc82d29fc89a343e01eff20bcda12e82b0375ae623977753d6a9. 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/DGA0R2420731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41059224da6a38268d943060a9352f7717f44806eede91601ccf03ab0a52a8c3. 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/GBKQU2491708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64a67c576cc46c2b2441edee3bb3e65ce669fb00806c391cb55ecf8af900fc74. 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/CH7812415517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddd7854ae918c6a76fef21c7581220a2c76102c1daf2a4e855aa8471af2e86db. 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/CH7812412580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb77b66c5e8abc072343ca18375e9f0a1f24b28ddc18ba193cd3682188762fdbc. 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/QZK6F2498074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3ca4460d1db3fb945bb9dc3be53ec123ce88f52961a1c8dbba79634d21123bd. 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/GBKQU2419145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc24c323b926faeb1339e2810f49073b7e472f686c7a86ce842287d5f2ffcaf32. 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/GBLV62323069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x600e16bfd039c21ac6c35de69c663e1a2867ec1a6a62baf602e2862b58180c6f. 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/GBLV62317997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2f63d524eb698725ad523c39cca9554ef55f3cf6381957674388f770b9fb16e. 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/SE3GO2402101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x502f4d14eb5b3adde399c3f8142b28f17b34c466ec676a19f51ce51a457161c9. 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/SE3GO2318201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44801f4c156ce9198e2cb821105e117f4a90079f0450be77ca96a7dfe1db49c7. 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/SE3GO2317901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4964c12d968f75a6c324d58a13fa18187eb65cd8de3dae0e434b7aa1aa562793. 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/SE3GO2312001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9a0da44bbfd55ccce4e29863c3bba413f42875435e511ff2f712e9b75917438. 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/SE3GO2309201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c1ad92a809a66ce9fbbb14ec7b71ca3ca40aca73acad6476e31a87463fb7103. 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/SE3GO2303301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x729c186ec2a10c82acc7051a66fd1834f0b4e7ace4e024d9f82cadf1903a7cf2. 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/SE3GO2216301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf02a16075bf928c46b67df1b085e979cdfcfb40024894f91999dc5877e66ba57. 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/SE3GO2210801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd110239e91fecc59fe4a2b9892f3f7947303ff5d12d1430175934fe8253db295. 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/SE3GO2210701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb74912c4185443fb6dd3678847c3bf60cc7e7b861feea8bb050b4355918c673. 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/SE3GO2207101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b4093f5624a2f8da6108178b15b475f9e191097c08b1435f1ebe40030623efc. 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/SE3GO2205401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdae16c7934c6640972cd9fb222ed3d393f1f560f309a5601e9362f9af29d925f. 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/SE3GO2203001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fdc6addffa40951667bde42864bfcafd1ed5f91d73515ece2584cbbc0631117. 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/SE3GO2200101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae7ccf0295e4a83caf060c5770dd046df59881e58f5a764e4ac12f43e3ccbc9a. 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/SE3GO2122501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4d8e646f2e7e8dd8a46c95b225ba31455bfadc0ad1684fe30abaec9282a9f93. 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/SE3GO2120701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6706ddd05aabf85d0088b4d5e85339fd1a4fcc34fdd2991ea3b9bb43d896c55. 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/SE3GO2116401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74c94963260b3823db30ca2face3a2f47583b87b76a87e71f6eb9dde21502a72. 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/SE3GO2111001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x375ddbe7d7b20bfb2e72f81f468ea656e1edd8fe1dbde8c59647d0d19f911316. 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/SE3GO2105401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa232f1920b89ceca22e81d2b66991be4364e1d4fddabd5ba33191e2a29173493. 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/SE3GO2101801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbba757b89e9bc9c8a9a878a2d31319e052a5cccee46ece000ffb67e2e1b1d9a. 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/SE3GO2024201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe72362e2efe22daf1ec672a728783f37ce185fe697523a3bdce1f512a1f88852. 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/SE3GO2020401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe78a9caeb106755f6ac32e7d6ff97ef8e2479bf4d4790b6f4f3108f887a307e1. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/SE3GO2020501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91d1d722470da3dd5c46c1e05e0acb6c9b0b7d04673cf7afbde96d521ea3ed1b. 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/SE3GO2017301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1e2a1ba77b9cb018084086239fe8ed8d89ff4b3f4654028be433944125cfa05. 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/SE3GO2011201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa18b71bb14e208cec633b5751f8b80c7c290ea257bcd4d884e498778695155f7. 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/SE3GO2005801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8ecdc5f1a50470d404f7b3dd3d37e405b4e5ed7a4e05a95315215bb890f1e2e. 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/CH7812537480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f361ab41e9e8b147c21c8fc7d17d9eef5e0f71f846f787daaf032b0de833ee5. 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/CH7812536951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f361ab41e9e8b147c21c8fc7d17d9eef5e0f71f846f787daaf032b0de833ee5. 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/CH7812536951.