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 0xff2251b16fc25452ec13abbe7b7c8084591034b3fb139a73099f8f32a49d0fd3. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ea374243-c6e2-462b-9665-52ab33f8bec9.json and https://artists.proofprofile.net/proofs/artist/ea374243-c6e2-462b-9665-52ab33f8bec9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Music from the Bandstand - Musical Medleys
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 0x2ce7016d9723a4ee3714a182d79c20aa744d3a3eaf51342cdf8cdfca085e963b. 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/DK5C50153240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2bf76e1799a52b75979d66a2c04afdc1818cbb367bf00a3af7bbae3e4fb295d. 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/DK5C50153244.
Music from the Bandstand - Military Marches
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x515372bde7f2bfb442c290e13068421d1188e757438ea55ad95c66506283cd8f. 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/DK5C50153258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe24491e426b0782c3a501ee89776fb9f9e9316e88603cc6da66d9d99255c8af. 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/DK5C50153260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43941efc6faa067a0920fe8b9e25680b8c62154dec23890f3418c34042c5f617. 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/DK5C50153264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x244b6adcdc5db4b5400e5ceabc98e60cddc7c3be3d5b06d11cd6dc291f823eda. 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/DK5C50153266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f0da2d06138a1dd154428a688c50ac115fd263bd861e518703b2ab6d23b5928. 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/DK5C50153267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfcbd8cd086604c444b55c3b52ceac45e01ca5fde7b5584602a8b095576dd6d2. 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/DK5C50153268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42be1fa939cb15f4a98b44b0a9dce293c6ba09dfc7263bb2b7f8ade22a223759. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/DK5C50153259.
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 0x7a17701565f3653307fd799a4fa0f26ec0cf20e3711812d5d3e3785909397687. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/DK5C50153261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd27dadf9473efe8efde590a4511b7a859a582f8db3deab91f5b59d8c93480246. Chain 2 (Bitcoin): anchored in block 960487 (2026-08-01T00:15:43Z), 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/DK5C50153262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eeca63a904382520a15ea65a0f190715127f5b42cb4a046f34f93a788afa679. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/DK5C50153263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe47cd3390827e50698c33e624e64fc5efd3a5cbf97c773b2245cd994a472d84c. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/DK5C50153265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x645b1de2961ed19524a6212eb54b80f3cd428da121da4b56b11cfa8acccc2103. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/DK5C50153269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ae485ef96a1f670dc6aafa6b5d9da334e33ea2c748f6b50f49b68cca875784f. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/DK5C50153270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53b541f59da6214cde6fa7ddccfdd7a1a0f9ce43fc8170e4041e87d82e112d17. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/DK5C50153271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe15c412b06be0cd5de26daeb3549933fac5ae9d6ed00818bbed6e3c1250f766b. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/DK5C50153272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4153cfff4ecedfd07c15eb5fb15f1179ad02d60b6ba21e90dcb7689615a500dc. Chain 2 (Bitcoin): anchored in block 960200 (2026-07-30T02:37:10Z), 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/DK5C50153274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x363589d36d174d398203a87973576006e4c8511124513916dd02d5c989268310. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/DK5C50153275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4109862945ee51d7b8b50cc382d03d6b8cc23c5c7ee9911c7cf07733991f597. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/DK5C50153277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x228f80a029541a0608cb9bcaca3afb6004aef7d91605cec4a951a3418df270de. 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/GB8KG1104591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c062d59c3b7ef70c05e4f807531b723c491463b9623a0ddaa6281d4bcf98f32. 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/GB8KG1104607.
Music from the Bandstand… Military Marches - Volume 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e76f8cf1d84d89199329d5288b50afc42413fe9adfea012e9f723276dbbdb59. 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/GB8KG1104601.
Music from the Bandstand… Military Marches - Volume 1
Music from the Bandstand… Movie Blockbusters - Volume 2
Music from the Bandstand… Movie Blockbusters - Volume 1
Music from the Bandstand… Musical Medleys - Volume 1
Music from the Bandstand… Musical Medleys - Volume 2