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 0xee08d65ad6f94cc6489fa1a1f5363f9378bc41ea667d33fbbd5b7f3d62541a2e. 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/6da9419e-4c1c-4c60-bb4c-92a3a8389366.json and https://artists.proofprofile.net/proofs/artist/6da9419e-4c1c-4c60-bb4c-92a3a8389366.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 0x16393ef085e85ef23896d3d40ed49b0975aed20b84e245637031f924b4ef801a. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:43:01Z), 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/DENI11600094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9049da22b87c7ce6e2be83dc7af442d63cdf131127d69a196e4fd9acf9758161. 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/DENI11600097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cf2ed83510f2f48d0f0874ce80ac2d4d7ec2df50ff83f18e9feb48449dfe8a2. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:30:25Z), 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/DENI11600098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda985697ff13a53e71ffe7c12edf9582e940ec5092f66231ecb2b6ad0fb8249a. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/DENI11600099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb322fd6cd68f88055f07ff81d5948029e5d671e44b1dfb5411d097435555816. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/DENI11600100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdf5d00a6355b49c36f164f2a93f8503d814024748f5fb9e13bc48c73220c16d. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DENI11000100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd4d638a901dc3bc0ee5b0039c728f10462dcdf7fbe9c0493c110d2198dbebda. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/DENI11000101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca875035116dacdf0b67a137a3f360f26d156b9f040dc7a1857e6debd8239f48. 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/DENI11000102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd03fe4e5855d25d2990132adbbda79db3d0f2a83c4b533cf3402fec1d42ffc72. 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/DENI11000106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f68eddaf3734f689024cb4f175e676290ec8de9bc33817739a1e7c3b2ce7de6. 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/DENI11200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3054f2f24819de7f314ee45373bbc2529cb9869be758074ce15425342f7e80f6. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/DENI11200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c311976cf6913445d1b47f891451a98ca977147463a6b92731633f7249ebfb8. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/DENI11200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cd6fc580c39a2baef0940f04018f43dec939b9132505cf50cf80e4c59358823. 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/DENI11200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d39f4d96c3489648245d4a638b2c7407b5e87e899089d389314061eab21c9cf. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:44:00Z), 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/DENI11300021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7058aeb5f20e93504e5b07f6032b0f72499841a1181e12bdcbca2e18c1ece135. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/DENI11400161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8e5291c12fdddc117d580afcff67557463a5cfbf564783f3adbc18a9b7ecbb0. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/DENI11400162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f2edf774743c1189b712b16d01d0aaf254f2f656855f5a95d823001c5f3c787. 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/DENI11600103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf43337758cd4f82dc4d41b14625b2f969c44af87aff559e4228d047e91c1de4. 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/DENI11600050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x045496faa2520ec82c90446423d31c63a83123d77dc8389184cf8a17418018b2. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DENI11600051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fcbed34dc5e17983af39a30ab9478423b378953692dff837069c8445fa578da. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/DENI11600054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21681f88adf87623851f424f5009ca1c49ba94eb9a1252bbfe04976ce58ed6a0. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/DENI11600055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x969daae895c777c54b43688ebaeb3c03339d9b1708613e5567fc100f0825f87b. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/DENI11800103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5a8f89ba29e8c21fc681748508dd839d15bed07cc77cf86c2aae4b3c47191e4. 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/DENI11800104.
Offerschaal Der Astrologische Mengvormen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0206ec1c49df7c94ef2c58b79797ff6b527c7fb0942161eb5f35b7765480724b. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DENI12000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1671c099c5dfa4729d4a8042e362d7ca5a549ef6db58898db3f729feb6ec164a. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/DENI12000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd11f7cd00b6d3bccee472394825163eabf3b72a0abe9cc96e99528b34205892. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:13:58Z), 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/DENI12300050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa507f96921a4c8ad7dae86dff9298af696aa849169ee505822b8fbf964c3208c. 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/DENI12300051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03a8fd7e74c7491a4de2e0690211642882e7c16fb87b044d27ccc37b513cc9cb. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/DENI12300052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f8ca4c181ce35bff4b2ce00c25d8a7ac5bf7aec90a5090a60a31ff4c4d49331. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/DENI12300053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd20a50bff3a7c10e20f4d8930f1522604bbdae1bd63c920c0b7ef3096f5f3fd. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DENI12300054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf3d547d56ce48f0e3516c07faf290b139e23fd1a548da7aec0cd333a2360c9d. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:20:45Z), 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/DENI12300055.