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 0xfaf36ac20437414baa24acf9abb68bfc164123eda565bfd1266913f7763b113a. 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/1deacb21-1092-4cf8-9370-1b990ff54598.json and https://artists.proofprofile.net/proofs/artist/1deacb21-1092-4cf8-9370-1b990ff54598.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 0x144878f70c5aeea1b3d82169e31244479f9d98e759d448e2b82e208ccc48f120. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/GBWZD1710313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37ce82373345f15747a7fdc2ebb3e3192bb46b820708da65df626d3c274625a4. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZ8BZ2202346.
Gratandi Jeg thig Beiði (From the Netflix Series Katla)
Katla (Soundtrack from the Netflix Series)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37ce82373345f15747a7fdc2ebb3e3192bb46b820708da65df626d3c274625a4. Chain 2 (Bitcoin): anchored in block 957892 (2026-07-13T18:21:16Z), 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/QZ8BZ2202346.
Touch (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9173823a4d237581c0438a023871bf128c0e90f30533f7416e14129dc2275820. 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/USQ4E2400066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf2412de881740b503f90299eedec345209987c809d7d8cce780fc747f1f0e55. 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/USQ4E2400071.
Miles to Go - Soundtrack to andhim's Road Movie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab85f74f6477e3b91a2e17d5f720570d5382a847a66e24722702081f27d6db05. 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/DENC31700094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4e20c60a26414369035c8ea8c61d5e4e4647ab9d327dbf89c59c5a3e2026cf2. 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/DENC31700092.
FG Chill Out #2 - The Deep House & Lounge Music Must Have Selection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4e20c60a26414369035c8ea8c61d5e4e4647ab9d327dbf89c59c5a3e2026cf2. 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/DENC31700092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4e20c60a26414369035c8ea8c61d5e4e4647ab9d327dbf89c59c5a3e2026cf2. 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/DENC31700092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22482f3d6c3f35b6bca83ab8539cbd26b6903f92d6fdefe99468071a2f330725. 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/DENC31700095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab85f74f6477e3b91a2e17d5f720570d5382a847a66e24722702081f27d6db05. 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/DENC31700094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30b2640d20782ff8023da05df0a8385c0c64cfece7444d6e3739e0e2815edff2. 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/DENC31700096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6353ef8c6f10aa29212275bea25c58199e08ea5de63d231af2e90efab7894147. 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/GBAZA2392040.
Stay Close To Me (feat. Högni) - [Mixed]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eb6907a9397ba03e83b1fefba4c02ba100cde8fcf575bc14ad9a5f2cd19861c. 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/GBHFW1800105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x753df9731620fbed9d9631f0f29500125a23c562de30433b702c59000abcad25. 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/GBWZD1810009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe317702207d941f94c88ed5eeed7d248a256743f1e79c056e839422c1c8622d0. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/DENC31700093.
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 0x7fda0338e6674ca974a4c5cf81455b25ebd5b646e4bfb0888bafdb848eb2d2d2. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/GBWZD1810016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc1922fc10b9462825f4d1cbe49f28996e583603f45a856a2ba7c65a2f9d8351. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/GBWZD2417016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd1b61d683eebceeb3cbe6ad2bf84e97db47932cdf078d3fcf2a980959ab6e48. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/GBBTF2200150.