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 0x276f6bee905233b73f98815afabb79b97eb5a45e0fc8097cccbea779e3338579. Chain 2 (Bitcoin): anchored in block 953588 (2026-06-14T04:52:46Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0298f4e1-0d21-4064-b22d-8459b89088d6.json and https://artists.proofprofile.net/proofs/artist/0298f4e1-0d21-4064-b22d-8459b89088d6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Det strålar en stjärna - Göteborgs Gosskör sjunger Jul- och Adventssånger
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 0xc93723be34c29479f944f198cc1cd2493a70d532e90238b6b598bd74335f6f56. 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/QM7281426309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6384ebe43d4c87024f998ddb1f865cf4b7a0bf797583f75da2cb7ba2849a8fa. 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/QM7281426311.
Det strålar en stjärna (När det lider mot jul)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f330204f0e7d030a15bb9433256f3d219ccbfee2aeb3989b2c780840c5f3b4f. 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/QM7281426317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1101d2963c59bbea384f4c9928ecb809d024dd811479b8d0c182dfab339fa2dc. 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/QM7281426319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd723e8a619eff74929d58829ba98405aaf4f84d1b02d84951d33dcd4152c0dff. 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/QM7281426321.
Med Lust Och Fagring Stor - Sommarens Sanger Och Psalmer
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcefeab80663224c479e55ca72cf795a50dd7fe175c75f67a3200a1395d1079be. 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/HKI199269301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ba8648d877d9554abc2714e77ca296a920480a20dceb0855ae91eefa2bc9e26. 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/HKI199269303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe97d564d0efefb1ad04edf79c04955db39aa702c68d18219e30eddca28d41799. 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/HKI199269304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5f29c0743f26900c90e2fc9884940405722125d14325573980b5e104006c271. 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/HKI199269306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x708955d3ead04db32db720875980eefd9ef89e4138d662404b13b439c0752e09. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/HKI199269309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ec545be0adddce6b6490005188585ae371745c8beb39b459a1159b99913abd6. 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/HKI199269310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa3499f830290333dc1f23b5b188b5d20181dc47dd85be2fee664d4a73a49bf9. 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/HKI199269312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb299b5bb8484a1fcd46c5cfeb7c26f985c37a547ec6fa466953cea96ea40a148. 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/HKI199269313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9deee490ca7f1db3d1ee9e14d02464a73a84dec71403b226df262b4d3ad78e4b. 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/HKI199269315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cdb50f6d1a33211ea6d631cedcec56c34d150d9b36e4057b22291a105af9120. 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/HKI199269316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd23be13658d208aee3dfbe571e2d343d810e13b33b62f58b7760be50df8709f9. 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/HKI199269317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c7a9a03d1e171784e85b69764dbfb9157d717eb50da1c3f5b87663f619aaf3e. 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/HKI199269318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x286bae64289da516e80dbd8d02c374cf0af65b43084914168c7ad4979e40dae8. 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/HKI199269321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x571bcbc9bfb8ce83d0425c203eb1b3a77d6031973cd8157651720c729b5d9f78. 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/HKI199269322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cc3a057205d20112e9ec09e8e32c785431bc0a344c50c32210c585e13b01ada. 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/HKI199269323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eaa24c9b98bfc83426c7adf6dc9e6803d6bdcc727a0394b1830e5cfca81948d. 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/HKI199269324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x172630115cc1649794bf6355c70ab5833b22212b5733c8b130b5148f74f40e27. 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/HKI199257201.
Lady and the Tramp: Lady och Lufsen (Lady and the Tramp): Bella Notte
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6362ad202924eb450d6833b8bb3f77322709ea7f09e4bd74457aa80b953e7ce2. 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/HKI199257204.