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 0xf96bb209de2554a2dbbb1325fa8a2a220b63220890e933ad2ca328b88c370e33. 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/a0fafe8f-dde9-40fe-96c1-9ea3b3c0c99f.json and https://artists.proofprofile.net/proofs/artist/a0fafe8f-dde9-40fe-96c1-9ea3b3c0c99f.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 0x4e992f2af89f2111ac41e05200f6e9932af9c80112694433a319be37c48235fa. 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/TWCT52433637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88ec2d85e7be0c7f2662f5cff7824218430364e6ff30653788258c721b8bb704. 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/TWCT52433638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fd8b05e3ea4fb755e2d3513d4eeadf711d21634d6b523625c0ffa0d38827a0b. 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/TWCT52433639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb0bb18c31132ca041577f214475b3bca6d6409553d04df3d772fa8ed4ffb978. 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/TWCT52433640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90e47be9a72b792500265843584ad430d301242830e5fadda2b5fee5536368ff. 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/TWCT52433641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd953bda090894ecd9001f6a9eb28339a382d36df41441eb0a0070509d946f4a8. 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/TWCT52433642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a8c01e32f2625df6afef03b68291ed2c12e40dfcd1add5d776843297ed3d463. 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/TWCT52433643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde708197e7d9e9b9b3532409db8fdc19bae93e614745758d3ca0954c5bbf3eaf. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/TWCT52433644.
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 0xe6e1be1c4f4b6959a78064166b62a41ca983922b511b7c91c6eded9501f6041e. 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/TWAE32000570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9434506d69599e68dcd78049d39cba1e6fef2036bbb957de0ef7704eac7a2172. 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/TWAE32000571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc106daf61bcbbd073672ff96053129fe7fcc5327ba6436a053994304e37f9a55. 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/TWAE32000572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x008137b7f2383ce52aeb0d6a379470b169ba2d5593cb35ee75bf97a9adf64ed4. 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/TWAE32000573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ea03b39f535bb882fdd6a20adc540feb66617fcb281310e34c5fb8b925bb9b1. 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/TWAE32000574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cd517d0213f0a5bf2540a75cf0af80e31d61617237b4a3bcb5fa58a81e6f9af. 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/TWAE32000575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2054b078a9dbe110c0a68bab922f1366fb56200c43a921a2a908d554afafad32. 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/TWAE32000576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd4d89090e24dad46ec579321ad78d145786a78836ca8617956da54964d36798. 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/TWAE32000577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc42d0ce4ac0ad2be9e2156b3623da852b1961492ddf96dff252304c73675f92. 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/DGA062211349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6e564886ddd943113a42f1cc900ff137233c16f52c2468a64f87bc73382a4cc. 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/DGA062211351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45244f010e02ed9c92b14fdf8a7b07f5c88569fe94dc5aa182d093cc93d91422. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/DGA062211350.
滾石40 滾石撞樂隊 40團拚經典 - 愛你不是兩三天
愛你不是兩三天 - 滾石40 滾石撞樂隊 40團拚經典 (原唱:梁靜茹)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d39c81c1e8aefb504342e6b60e2043bc96ddcc9f9975dcb4198d609cbfc2c67. 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/TWA452200013.