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 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 0x8eb07290b41e4306b1082d71c7e953fa4fb643a8e11300bbb24c937aef56d704. 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/872df2e9-6d4a-4975-9211-e32fbad416e8.json and https://artists.proofprofile.net/proofs/artist/872df2e9-6d4a-4975-9211-e32fbad416e8.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 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 0x4151015de0089fbc1e1307e9c3f2fe3fdec5fe91bf750a2b6300688c15a2da65. 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/INT102304967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x729c9d5e5eaa206024e8c6ad50eccce19a7da5dea7c487923d6bc22f028ef5a1. 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/INT102304968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc30c7873844112bff7ab421b46f08296381a914afd74351cd9458ea17cf93ff. 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/INT102304969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x592a9429b67737c152770bf43b812bc8837bc90741c14aa1a5b738aa10fc5d15. 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/INT102304970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9fabebe0c36d6d926ef22c9f5654a9cd1a1f80a15bf1782de187f881d9eb24d. 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/INT102304971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6f95910fca9ea19938269f555054605c7c67c1d00ea8f09af13d168cd87a9f6. 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/INT102304972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3755bfd676b004a5f123f3c0cc44558453880eaf81c3af478cd6d68d2e26f1e0. 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/INT102304973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d1cd15e1bdc5c0c713251258f3d9cffc064ab7b33d1460363511ee40b7b46f4. 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/INT102304974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa577d52e67c4cf5f3f04b17efce9250d95c6732430b4ab2c1421644afcd8d30c. 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/INT102304975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34330f5602e3261dfc130437d029e9aa688dcd48efe6b2f23aaac2a9783d29db. 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/INT102304976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0074b9ea46269b2ca98f586641c8e89eb931ec564dbc6d9d56637173202d6b45. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/INT102304977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6402acb00dc115527460ac3518025ab304ac81259bf3429147bde3413734b576. 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/INT102304978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4b7f619698079fd0a4ac3d2310266653ca788faaa600e0310d4a901edb63be9. 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/INT102304979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49faf921e4c8b3ccdfb4031bb446d48d08fa29ec72e926042a4baca0c971b0a9. 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/INT102304980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55f7fafbe79e1e3a7fe24f0d66cbca173da2f34362dc3cdd38d9538874881583. 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/INT102304981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91a6edee7fd48b01497731d10b0909e412302d19e57106855ddb465f110d6e55. 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/INT102304982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ce5da6e88d6702e17eead0549059e0980990877a0e07c49fb72ae71463d8b55. 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/INT102400258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81c0c503c13b73c6253a6e505669b58254a2192684400826088b34ad48226b3f. 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/INT102400259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26ab0b9ba8b38f67f615dd3ea11519d67dd86cd253a05034bbc1ec553c88d025. 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/INT102400260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb260528dd175d068e35f0e4aa0b18429d1595549a22969dce9c12461646eb4b5. 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/INT102400262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee60ed2e709db01812e946252690201259100fbb2956cf21b8482a3d3b622321. 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/INT102400261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x982330a32ac31ff3207764fd254de8c1db376e75e33f1d13173346922a13e193. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/INT102400263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc6b02064db1c1e2c6cdcb2ac48d420002577167263f3b898862a77a892db3b0. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/INT102400264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17d15b00729b5d7843a549386d53915057909a0993724ce7e7b43eb4bd316db5. 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/INT102400265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2108f975bf1b1e65325b0ba319e3ea2c5d59c264c0c91ee41d260551dd99e83. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/INT102400266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c386e423e13c5da3387b99196d8908ee40e56922d860526cc7455bd851deb38. 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/INT102400267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40576ff441b156d962d08f78154cf94d76cfe3be9bfe9f88936eac4f9f7e0e61. 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/INT102400268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fcd9988367e762db86de04aa74f94b1dfb803d6033e59c20a37fcbc9ae2a80f. 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/INT102400269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61b21ad4f11227a2deda6ef8fd57c92b8831d2d0578b4c1c82dee21327c907e6. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/INT102400270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3c87de7249f7eff5def0deb4913b4b2af61bd388534680a89b5252a928a12ee. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/INT102400271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc38b3bb31210db1ef53cb0ea3800a8854b744b9c5f8384237181b8f0797bc7fe. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/INT102400272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf56c3d772901b26e110115acfd829e3f4ed24817cd6074264542af217b80999. 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/INT102400273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0134c3d79635e761b6a38088d2028bda10c992a6b3c5910518fbc1b5047d76be. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/INT102400274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca5fd350e0d80508ce0ba948f031d7214418ee6bdacd8a80680c0cbfe189991e. 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/INT102400275.
Devaralan Aattam (From "Ponniyin Selvan Part - 1")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57d808611989de1afd136e5dc847b511528b9ac63ff4ad2abd341d68d94f2261. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/INT102201308.
Aga Naga (From "Ponniyin Selvan Part-2")
Ponniyin Selvan Part - 2 (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb43d5ce893998be966461492acfddf5a6991abaf6061ceabf11dfd888fa1232f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/INT102303855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1bff3ed9bb358c2654eef2b8843c2894d858177f450e8a3badb0b85e93ba6ff. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/INT102303968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce3ac9fabb3cce69ab7e187b5e103824ddad1daf875fd7ab342b821794c9ab0c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/INT102303948.
Chola Chola (From "Ponniyin Selvan Part - 1")
Ponniyin Selvan Part - 1 (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6ec2fc99e46b7e6dd12201663a3e513f10cf545e82f29b97f13f31114761091. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/INT102201234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57d808611989de1afd136e5dc847b511528b9ac63ff4ad2abd341d68d94f2261. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/INT102201308.
Ponni Nadhi (From "Ponniyin Selvan Part - 1")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01a424b63fc8ec03a9a4778c32d10cf5f18a495fe2375708cf30dcb83b868082. 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/INT102201160.