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 0x85d88571bc28602eeb76df7daff5ef81c65d7b1f211c6c7bed963b2155af783f. 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/32be8e0d-50f8-4f03-b3c0-caab338c3e20.json and https://artists.proofprofile.net/proofs/artist/32be8e0d-50f8-4f03-b3c0-caab338c3e20.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 0x02fbf3ce81e3683137dc8002dbff2ba2a25d431bde163f7603d7d9eb943c8cb0. 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/FR3OD2000300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c6222cdc629b9ed872dd5470d6c01221ace5e7a853bd6d97d9af6a71bb8c051. 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/FRPZ92401690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe71a5bbd2dc59336e3ce477a6b000c6215880cf07ecfc75b3b30eea9c7828336. 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/FRPZ92349990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf798463708cdf821b7b6e4ea29cc45b00a92bd688828273e392c1bccd041a20. 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/FRPZ92401700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfdadba6ad1f220b9c1e8893683dc28c08d8075225703636a029dc01f4341edc. 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/FRPZ92344560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff68e886ac1e8ca9850338347aa26e57b59e4d0e03249f23164502da032dd72d. 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/FRPZ92402220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae1d7e9955a29f87c6effabfde03fbf13c6ae4329c11328953cb07d5d2a28dc5. 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/FRPZ92401730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4649add5d5cd6a5daa2d132a3293d922d3ebc604d166a3c1242d722eb9523ff1. 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/FRPZ92401740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23426a009d5ac7a9c6be6489cbc60f65451207204fa6f955ac895441119d0b4e. 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/FRPZ92401750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc59139dbb2fb11931d10e03de2d01f734f64d78b1499907cdd0ae81bdfab22c. 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/FRPZ92401760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d5bfcd93873e8db487df36ad2ea9b2a484c55b1f7019a186a4400f5ab865158. 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/FRPZ92401770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb09a497dc0c7528609b741337782cdae7f47efda8d95cb1f1a7e6679c8970a5a. 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/FRPZ92401780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48638f16627a052b3ed62af994c007bb968e7a443a40e3b15f33205e587922a9. 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/FRPZ92401790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a8d0c5b8843c865734c6c983f93bfe8a3af10f122466d170fb4711887b2d282. 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/FRPI61800690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43a7c08f9486200b8b19297f863e0422fee7298a0db7db323ee564ae8cc72136. 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/FRPI61900050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcfc44ddc027c284df4c603610175b9848b4591fd7d3b3a1f78e64abad24e602. 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/FRPI61900060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08d06196096f0d09adc855375b4ba43e1b2a67fe665545fc44b7d47ed7112cb5. 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/FRPI61700700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf56f46f30e47d4f7490a5bd2763e1cbb768de59a11f12311bb7bcc2303862ecc. 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/FRPI61700730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3edb488d2c2fbca7a55da39bfc59604262c1edaa149797fa09f5a56404f6a5b3. 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/FRPI61700740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c54fbe0122b292309cb8ae981ce1785262759652066a2bca44cf71b0f0ce396. 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/FRPI61700770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb09a497dc0c7528609b741337782cdae7f47efda8d95cb1f1a7e6679c8970a5a. 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/FRPZ92401780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf798463708cdf821b7b6e4ea29cc45b00a92bd688828273e392c1bccd041a20. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/FRPZ92401700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe71a5bbd2dc59336e3ce477a6b000c6215880cf07ecfc75b3b30eea9c7828336. 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/FRPZ92349990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfdadba6ad1f220b9c1e8893683dc28c08d8075225703636a029dc01f4341edc. 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/FRPZ92344560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e8e7e3d924a4d67211fb998b3d6780dd1f84996e217b65848f64044a8585e4e. 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/FR7O52000880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7717a3552a648c64dfddd9d1216c485c2e9f085dcd87cde0bb71e4faa8b63ae. 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/FR0Z22000020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a8d0c5b8843c865734c6c983f93bfe8a3af10f122466d170fb4711887b2d282. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/FRPI61800690.
Le gouffre (Yan Wagner Belgian Trip) - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d419bab37d94203e42f297a4a8840985a02e079771517a025bb290533a1f07b. 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/FRPI61500830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18d916acaf43c0f1e44394544ad22b8f14b42d9b2e086471b86a37aefe103f05. 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/FRPI61500590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07d531ac3ed1128df35d6b1522d4af487112092701b2795814e4b6fe779f68d9. 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/FRPI61500610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed9b1585ca69757c59e3ef19b20e7ca5c285d57d341fbf14a17722ed98a7a954. 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/FRPI61500620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18d916acaf43c0f1e44394544ad22b8f14b42d9b2e086471b86a37aefe103f05. 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/FRPI61500590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66091b954169f9106205d948a6ab84334f4fe6fdd4129290f86a21c41d73d46b. 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/FR9W11405455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91ab82137327e455b4498d4f22af0db573c7a386ca330ced839a38e74b31b86a. 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/FR9W11405456.