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 0xd4436df167576d86ee8d624dc414cf700f4fe8abcaec5abbf0b8d1d34762c8fa. Chain 2 (Bitcoin): anchored in block 953687 (2026-06-14T20:19:15Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6800a1e6-29f4-4c0b-a825-13db02151fee.json and https://artists.proofprofile.net/proofs/artist/6800a1e6-29f4-4c0b-a825-13db02151fee.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Kristiania Magiske Tivolitheater - Sangene fra serien
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 0x5c71da3255403eabfb37e83470bf4fe21327d61724efe1fb0acdeb66eb4317f2. 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/NOHMA2127090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4586e0ef373f27dab87974e49fbd96410fd4874b55cd6318199e3324628089d. 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/NOHMA2127100.
Kristiania Magiske Tivolitheater - Originalmusikken fra serien
Kristiania Magiske Tivolitheater (Sangene fra serien)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc80bdf65ab36d81e205bf3e104d4f857ef9ab8306a5bffdbd710d8d7f37b24cc. 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/NOHMA2127010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c617fa8d838baec1c2ec0b09a4fdd7c66b59b7023a89e591ace5f2b94bd3849. 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/NOHMA2127020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fc8edf5e66071dc993f2c52087dfa0ca7858651eb6e178e8d154f9bf16bde6b. 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/NOHMA2127060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63f4437ef911c2a6e3882943afe446e605990c5070a55fffdcfc80e9d15773ba. 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/NOHMA2127080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c71da3255403eabfb37e83470bf4fe21327d61724efe1fb0acdeb66eb4317f2. 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/NOHMA2127090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4586e0ef373f27dab87974e49fbd96410fd4874b55cd6318199e3324628089d. 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/NOHMA2127100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4bd6582c61397e5c69b07bd1b8bb686e5077b5db5eb84efb36af37114b4096a. 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/NOHMA2127110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x620800c0c01912567395bf69b0e312ac6135ecb671e2a2681f29caf6d63f4d8a. 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/NOHMA2127120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x896d6945e783073631bd4d925843b85d8bddb685044f7c9d49b44b05cdcc1081. 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/NOHMA2127130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4152b8428cc49334c3bdb9861533964c31c2ce64a2cfe4c584b4b6320bffa34. 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/NOHMA2127150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30ca04050c42146fa8733b23f5c0ce2d50764849df6635af272174fdb89e9810. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/NOHMA2127160.
Kristiania Magiske Tivolitheater (Originalmusikken fra serien)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x039a2d1e68e8c03b12a85fba912a6388286e2056dab94275eb972c6b58ba6b22. 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/NOHMA2127050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c617fa8d838baec1c2ec0b09a4fdd7c66b59b7023a89e591ace5f2b94bd3849. 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/NOHMA2127020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc80bdf65ab36d81e205bf3e104d4f857ef9ab8306a5bffdbd710d8d7f37b24cc. 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/NOHMA2127010.