Tigger is a fictional character in A. A. Milne's Winnie-the-Pooh books and their adaptations. An anthropomorphic toy tiger, he was originally introduced in the 1928-story collection The House at Pooh
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 0x7138fe68dda58b3bab9fa78e08214e7e48f94bfdb25bea2706401654ce48ed30. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/74943299-31df-4faa-ac79-7b558ab9936c.json and https://artists.proofprofile.net/proofs/artist/74943299-31df-4faa-ac79-7b558ab9936c.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 0x2c38b6775b6d01e9a328fc039d3e2ef288650f7bee1353d53b7acc2074b7677c. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/DGA0S2423317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ae68dcf4fd172d3a7c43fe0c98f199c97642dd1cc54f7da23b4422442ab77d2. Chain 2 (Bitcoin): anchored in block 960352 (2026-07-31T05:48:30Z), 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/DGA0S2423304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4de5ce8594da7bc1739e95361b6199bffed1c0c46802bf60eed412bd932cf37c. 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/DGA0S2426572.
The Wonderful Thing About Tiggers - From "Winnie The Pooh And The Blustery Day" Soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x599ea9d78cf60e1dd91285ede51fe662693bb38641b419dde2a36588aa589313. 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/USWD10210159.
Disney Karaoke Series: Christmas Favorites
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad8dd6c96320b73d5a8465fa76db3dba71d0b18363c1c77f3ece0fa399314af3. 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/USWD11158377.
The Wonderful Thing About Tiggers - From "Winnie the Pooh and the Blustery Day"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x599ea9d78cf60e1dd91285ede51fe662693bb38641b419dde2a36588aa589313. 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/USWD10210159.
(Your Friendship Is) The Best Present Ever
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87c4367e9e6b36039dc3fc9111daa4e4612b7d3162982a106e9aadd8e8e0d700. 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/USWD10220330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87c4367e9e6b36039dc3fc9111daa4e4612b7d3162982a106e9aadd8e8e0d700. 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/USWD10220330.
Nothin' Can Bounce Like a Tigger - Original Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5feaec42195dea0c89c1fa0f4c35160b5378b4bdb6a2322ab3c2914cf921e05. 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/USWD10935812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x473148398ba1e487432b47369b52523dc5a5d0a8ff00e3acf70604eb6c7b791b. 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/USWD10935813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6414a38f619e785a4916b2250d9c72a5cf75893c515c76b9faedb469e1b0a98e. 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/USWD10220375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6414a38f619e785a4916b2250d9c72a5cf75893c515c76b9faedb469e1b0a98e. 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/USWD10220375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5feaec42195dea0c89c1fa0f4c35160b5378b4bdb6a2322ab3c2914cf921e05. 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/USWD10935812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x705234b49d47d96743b20b77edfd62d5fdd592beb4e44108f9e513afa5f8b401. 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/USWD10321049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x705234b49d47d96743b20b77edfd62d5fdd592beb4e44108f9e513afa5f8b401. 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/USWD10321049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25446c8688cb977b831696406fcbe0db1543f08f46cc912395355f9635c50be5. 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/USWD10321060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa63a3e72fbbe6791912b6c92360b55a84050ad67402842d24b1a0524cf722cc0. 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/USWD10220385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeefd56c869b0762a4b08a25574805c4c0ae4ecf1a2fc3105bf9e578075886855. 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/USWD10220321.
The Wonderful Thing About Tiggers - From “Winnie the Pooh and the Blustery Day"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa63a3e72fbbe6791912b6c92360b55a84050ad67402842d24b1a0524cf722cc0. 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/USWD10220385.