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 0x9b3a797bf8714a82c528611bed040b4d8ba313b4e5d0ec6d085a99ee78a1fb0e. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5e802e4c-7646-43f7-afad-29588e9e8a7c.json and https://artists.proofprofile.net/proofs/artist/5e802e4c-7646-43f7-afad-29588e9e8a7c.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 0x77eca677b682dcadc2ebc91d535796af1c8308c77dc9e0c200621aec34aca21a. Chain 2 (Bitcoin): anchored in block 957647 (2026-07-12T03:57:41Z), 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/SEVGD9900601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe93ecf55d1ab9603643943f9818ded66902d0302647188bac6aebc4a9d5b29c. 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/SEVGD9900602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7a88878dfb2f6e46db43441477070c870cbc600a1009a2d63a7695dfb1702fd. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/SEVGD9900603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x994363c4051fe84736341b511253e2f7981a0cafc20a295d2252699377e096fd. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/SEVGD9900604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x509b9f120696bdad42034f41de707caff30a0b1f8c8d2f3413435e294e0b1bac. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/SEVGD9900605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac17c5a0beebfa24977866e3f4fbb08d66fdc00e5f480ce0db35d34aab3093ba. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/SEVGD9900606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe97492b4cb1003073a22ca4110c7ce129f7383ec4869da9f95033971b6a90362. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/SEVGD9900607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf962e1eb1ecae154d94f0931c513a588f81ecbdbf9d1c49a70ee50320149b065. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/SEVGD9900608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae76608ef00629017cab41f203646d309a4e10c91e9d7af6135eac688b2d7065. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/SEVGD9900609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8784085b1d295c7b9674d7a12dcf507aaa603d2ab29d5f197ab76de15cc69207. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/SEVGD9900610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aa317c3dc8fbef5a333d0ef7cf5f4ae494cd7623b2f226c03f2fe5469938fe8. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/SEVGD9900611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58a624f1759acc518488c200e465680db7de32f8d64920e688368e2e78940ef3. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/SEVGD9900612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47e0df30b0a88ca6317e940db234b2ffcfa9676247740e71128baba8deef2be0. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/SEVGD9900613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d1748ecf111e17711d1b9a5d07636c463031e4e2d86e912a44da917812a6ea6. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T10:47:04Z), 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/SEVGD9900614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d7471378a432fbb00f7f39b145b0ddc4b413cdc56d80b2ddc33f92ed70c05de. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/SEVGD9900615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c0bfe5fe33f61b1c3f651df3743436082ea3e302eb2591cea062434eb753b23. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), 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/SEVGD9900616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ece4c41370e2bd181dcc395ef00b764e87829a130ec47fa2c44c649e5d844c4. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/SEVGD9900617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d8400a0d6c3bc4a97933290b5ad83d5f2a8be31b64ffeb121678b7ac11e9d19. 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/SEVGD9900618.
Vår på Saltkråkan - Nu ska du höra nånting...
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x106406682cc392b6e6fcabba49f43e241c13e185235b86fe9934f9effd8b7bff. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/SEVGD9900619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x257f1c340a304db584d190cb1f7afa3e4b1a401ddab2d6583a135f9f8cd099c8. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/SEVGD9900620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf449975d31bdac670f947e8cbc6a0fafa372a3b04c907f3b3c989a65c4c0896e. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/SEVGD9900621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21d61072898e481a2e8ef118df202cc9f0211ac726f0296f24d252a1d6089a96. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/SEVGD9900622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x032b94ebd9ada057fb592dcd3031a271764f6bb1c7aebc0cac9f8be7d5409261. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/SEVGD9900623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47cd0aad37f248e79ac30045fdbdcfb7d241e464b4fa7255cb02ab4ee03d5346. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/SEVGD9900624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03d047ee5890298be95893fd51db97f13c6f57c22726c614a37a0b979726d7c8. 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/SEVGD9900514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a05b12f440b3e0320309a290b74931f588d843e071a53dbbaff53be29e358db. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/SEVGD9900401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x951987e414738c68757f37082b0eac452616f4195bf9f94298585ab342864930. 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/SEVGD9900403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa77cd950e03e1e2872450ebea3babb2121ff16230e5e0c284cc20d18944754f3. 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/SEVGD9900407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x073c1fbdac420bdd4252a8e033571e7a89bdf24ff3706149cdbefb09c167e8d0. 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/SEVGD9900416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ed38d5668ddea2a3d385c07a9e08c3ca30179e8bb86ab6f8b82758511e3387c. 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/SEVGD9900402.