A nautilus (; ) is any of the various species within the cephalopod family Nautilidae. This is the sole extant family of the infraorder Nautilaceae and the suborder Nautilina. It comprises nine livin
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 0x72fdb8969ea49cd1470bd194010905a6fa254289d43e30adc57b46085674cea5. Chain 2 (Bitcoin): anchored in block 953674 (2026-06-14T19:07:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/60e2e311-521a-4a6d-90be-d162ca5bee18.json and https://artists.proofprofile.net/proofs/artist/60e2e311-521a-4a6d-90be-d162ca5bee18.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 0x3a0f0587c5783b5e48e2d269aa179652dc51f9105c73b924010877aa6a1c38fd. 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/GBEUE1400048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90f21e97b00d96c6601f0d1fc2e4562719873b02d13277c967a6ec40e27563f2. 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/DEEQ71809702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfc367d8f46d497c10edc996ebf1952caa0d150bc85e7499c4c7ace6cc889cbb. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/FR4EO1600031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeb5c4dc0ae618a71ad77e9a336baa5297276211b43cb564936785eb378b610a. 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/DEEQ71809704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfecd40a072e6f60d3b8af5d2cc3ae0934f66fdaca24ef1f3a1e512723aa2d65b. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/DEEQ71809707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd876f87ea2c85cb61047094c51b6afeb75a6e2082374596a6fb2cc3c1c385f6f. 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/DEEQ71809708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73aa4fdb4b938003610ebd9b4a589647cd0fe6b554dab48f4d6c9ffa77c39d51. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/DEEQ71809709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25d8da37aa7d841a7b108706129266a06b6b3814f3e1746330085a6be7673b08. 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/GBEQT1400146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8db356199072851bef0b19c9681c5b8638c6969141eec746fc763d427f529516. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/DEEQ71809711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c3d70cd8e1cf7a1b5e60d5dc33ed54d91d4c1d0e6ebcb2438416314b1173450. 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/DEEQ71809712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06c85f917092a6d33b0367d997bc98f1ff3f54136d502a227e527de79966b174. 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/GBEQT0800728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17e81ccbb17eff8ccc362310c56623a7798477bf89c6766842d3ad679abcba4f. 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/DEQ022006461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80a34461fc652304013f23694c06f75a9e705602ee59393cac7f97b7e9c7c09c. 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/DEQ022006467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x385171f5f587223d9e0d54c56d9ba9f3d6f1b739cba7c40330f80cbb072fadd7. 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/DEQ022006470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff2c30461f1b4562904c922f182162903461a351f3b346acad6cdd7d11561f77. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/DEZU72100057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a2542a48757283c9d6b8c526b6810eb9c12cef1764b2ae2c02cbcf3b353a5bd. 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/DEZU72100059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x714c694c0a4e27131de4b6a467f3e2a3c85991677b7a6d35d706806f3ba9b4a6. 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/DEZU72100063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed20803bfe7163ab25af26d2febde3b94ae719cf2c0d181dfd9bad8f5e838f5a. 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/DEZU72100064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6a6f4b091e40bb4f8102eb1d2f026f018cae93a790f3e0060934b41c0bdedf7. 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/DEZU72100065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdec21170e8ce9b3e0e4c7e7a20f908c8b61de1d6f5535fa23c295cf0202b3b51. 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/DEZU72100023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe547ba7ff90369f224aafb2b7a686292dc738856c505e0e92f12be8c5e8c7b11. 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/DEZU72100025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3878213f8066354bafa1fa0faac5b14789a796c52d4d3cd9aa9b49fe47777d35. 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/DEEQ71709101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb471eb523a03d0a176e8702c5fa1ec1a7ac362e30e3d074638eb3a638a4f7338. 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/DEEQ71709104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc37dd1cd412a850347f9a6c7495749d7ff88541990bdee68a37b86105c4c78c6. 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/DEEQ71709105.
Why I Came to California / What You Won't Do for Love
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8295b1c659168c9e39dc8d12230e8fc49221fb5e7c072f431b1248d786582f26. 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/DEQ022390684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d4413e773cc508c70a4467a3a06944d7fa1e8839e671b239d318e52c584c219. 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/DEQ022390685.
Everytime (Original / Pat Van Dyke Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fcd4c894d192e3b5ffc7333e6c964ee6176549b069a5b6e90ea5beab6eea3f8. 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/DEQ022006471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73aa4fdb4b938003610ebd9b4a589647cd0fe6b554dab48f4d6c9ffa77c39d51. 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/DEEQ71809709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3878213f8066354bafa1fa0faac5b14789a796c52d4d3cd9aa9b49fe47777d35. 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/DEEQ71709101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2dcbe95b752f6625cc85b302b1ef3011fe2d9eeb07866d7a54a205f28967aa3. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DEEQ71709502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x203c1a91291f2de5521d3bbe9e79e794d6daa6915afbbba187efd2649356770d. 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/DEEQ71709511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x271cb6bc8ea023ab2ed757012cf8d5391ba1848eb2d4fac34dd2ea7b6fbfadcc. 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/DEEQ71709512.
Love And Hope / Summer Child (feat. SaturnVybz & Nautilus)