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 0xb47b18d4a6e07995c7d4fa8ea3b2255dcab01a9223b18867646e1fb103afe1ed. Chain 2 (Bitcoin): anchored in block 953733 (2026-06-15T03:12:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/954e60e3-ea3c-4530-9aff-d63ac922ab5a.json and https://artists.proofprofile.net/proofs/artist/954e60e3-ea3c-4530-9aff-d63ac922ab5a.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 0xe44e49381451cb5041a44d2e2be95c84687fb1f11e8742ab7cce880c342636a5. 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/NOFGH2253020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc7872dab67e8b70f74cc57028b88d3f088d5be71fbc42006d7ef49d93e86a5b. 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/NOFGH2142010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf07c51b64b6019f18e751dd96e5dc748e82bee3b5873ec2001c6b817d1793f3b. 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/NOFGH2142030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x767981f375255482ddbea3c9fa95a57d52aad91db549e0e14adf726374fc1ac4. 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/NOFGH2142040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fb730a325abe3eadb20ab0cecd8d718b86799b99871cfbac813ab006aab456e. 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/NOFGH2142060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x429f0f21392138e717187a6314b2cafbd65c1527157abe03e201ba162f5087ba. 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/NOFGH2142070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecc789a5af6fed0546d9fd5ba949f6b06d48251fe53e2a9ca9af94397731822b. 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/NOFGH1803010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd99a677a5a022aebddd695e57fdece56817efc7d6367dd8dccdd31d09891e59c. 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/NOFGH1803020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e0d701ac1319de104dfefee874153d0802dda46dbdef55215f5e329a884a033. 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/NOFGH1803050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0faae0545e1c23897068a21e3e897b3df06c24746698ef2848ed2861bda20e0c. 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/NOFGH1803060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0659c01acd44aec41b340a82f8631ffe62e5976c2bb279f7e7210a975ec796ad. 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/NOFGH1803070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc90a90a95ced4867ad5ee439cc01ead63f348e9127d1710c72dce355321ae0b4. 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/NOFGH1803080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x195bf093b19b51f5776452bdefd19802807b48368de478ecb62dbf6176a5b201. 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/NOFGH1676010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x575f57763c791fcf561379419fbedc8a9dec5fb986b729189c679a13f5b99162. 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/NOFGH1676050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa1efb7e71e06101f6c61f9d239088b62b6c1f81ff5e302afd5c848a61b8ef40. 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/NOFGH1676070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a46975423e942e4e868cc2e0014600fc093ef34836be71290e06c5124755959. 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/NOFGH1676080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ac7441cca880c79f698bd91e1ce49c72ae5d3e2eb3320ae6f7e1f08e2fcf5f3. 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/NOFGH1533050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3647bf641de0cd6dfb1a8d185b7f5cb64ea5ddbf2dd786f7284bd8c8b3aecff. 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/NOFGH1533060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49e16c982e96abd943bbd2ef0faec39f6490f3ba1544a8841df4b380713b4800. 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/NOFGH2562070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae31d92cefe49c4858ed91d5004a3d5f4052a50c59b96228cf522d3e17d1bd73. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/GBMA22131062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0814b16159ce97c1ed5d5590d27faf5e006497ffb69d2883a7636f002660ec0a. 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/NOMMR0903030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01ac35e9289b814453357fce13a9c7382016400de608f0e003e5ab4da129cca1. 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/NOMMR0903040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e3d7dd62aecee890064a7e300f53d66f7a7d809b4b3395774839ba74fb0d3d8. 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/NOMMR0903050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5cebc601c87d10be5d26d2f1d9ab6317a96eec0460c2b9fd4fea32f2f6c96d5. 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/NOMMR0903060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0005c9beb95e2177ec7e99b5eaf454ae3241cf73704235b729895faaf362c832. 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/NOMMR0903090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0caecdb7ee2efdf6003cd5811378b237a7b5fc2361f57f1299cb36d9a1eb9436. 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/NOMMR0903100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb42eed0092005628411cea0d7eb068ae478960346c48c1fb7c873621702dd5a. 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/NOMMR0903120.
Kjerringa har gått fra meg og fotballaget tapt (Live at Brygga kultursal, Halden)
Fantens usle hverdag - Unreleased Live Track
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe41156dd5fd2082a22b88f3b2841664ac641ec949bf4f437e8f97003f0d6a26c. 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/QM4TW2441403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11cf5c4115c0043a3927294e1eae916c1caa83a3fb6fd232351b4dbdcdc37030. 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/QM4TW2441404.
Future Folk: Friendly Faces; Different Spaces
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40ad7fcf3b50a494f1b7601e7b0d5dfafaa30c9d8c9bc4cfe8e0cdd7cc5a06a6. 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/GBMA22131154.
Just as Beautiful, Just as Free (Extended)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x715737ab7d2f0570ebc0642bdc503d7b41a8b2ff20334dd7ceea36b0f02b5457. 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/NOFGH2562010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe6013b6b4d3f63e4a907d7f075f189acc63e858de62e70af289fc2f3f9eb2f3. 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/NOFGH2562020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28efa83149c7aa84d2b3fe115d559f0e601e984bd2f0070b27885da661f256e1. 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/NOFGH2562030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf477bfcabbb439e02697bf6b1fcab133c8d402ebc63a9fba6dc04d23e8551d6a. 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/NOFGH2562040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b4385445c144c5732c772bb88761f1697b7cc30d85a3b4f88173b406efeb34e. 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/NOFGH2562050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a407f834f2039e62e8936b859f86532707a7cc2ddbffb2e009578336de84449. 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/NOFGH2562060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49e16c982e96abd943bbd2ef0faec39f6490f3ba1544a8841df4b380713b4800. 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/NOFGH2562070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdd0cebcfb3afc49e621e8dd2ba3375c68cec6a384cf1abe0a3e01d12944e9e4. 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/NOFGH2562080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x709f290e7783cd75dc3f29722bc8b79402a7738c6abc8a83c380715be1dc1faf. 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/NOFGH2562090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe6013b6b4d3f63e4a907d7f075f189acc63e858de62e70af289fc2f3f9eb2f3. 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/NOFGH2562020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69d02833922df4183cd414a559d3c6888e9e86043087c15df01ad7c9fd977773. 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/NOFGH1906010.